Layer 1

Is Columbia Tap Water Safe to Drink?

Yes! Generally Safe to Drink*

LAST UPDATED: 7:47 pm, July 17, 2022
+

Table of Contents

Can You Drink Tap Water in Columbia?

Yes, Columbia's tap water is generally considered safe to drink as Columbia 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, the city's water provider website, or Columbia's local Twitter account.

According the EPA’s ECHO database, from April 30, 2019 to June 30, 2022, Columbia's water utility, Columbia 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 Columbia 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 Columbia Tap Water

The most recent publicly available numbers for measured contaminant levels in Columbia 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 Columbia's water quality reports, or getting your home's tap water tested to see if you should be filtering your water.

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

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

Is there Lead in Columbia Water?

Based on the EPA’s ECHO Database, 90% of the samples taken from the Columbia water system, Columbia Pws, between sample start date and sample end date, were at or below, 0.00306 mg/L of lead in Columbia water. This is 20.4% of the 0.015 mg/L action level. This means 10% of the samples taken from Columbia contained more lead.

While Columbia water testing may have found 0.00306 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 Columbia 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 - Jefferson City AASF/Armory - near Columbia 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 Columbia 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.

Columbia Water - Frequently Asked Questions

WHAT IS THE SOURCE OF MY WATER?
The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and groundwater wells. As water travels over the surface of the land or through the ground, it dissolves naturally-occurring minerals and, in some cases, radioactive material, and can pick up substances resulting from the presence of animals or from human activity. Our water comes from the following source(s): Source Water Assessment
HOW DO I CONTACT COLUMBIA CUSTOMER SERVICE?
To contact customer service for the Columbia water provider, Columbia Pws, please use the information below.
By Mail: 701 E BROADWAY
PO BOX 6015
COLUMBIA, MO, 65205-6015
HOW TO PAY BILL FOR COLUMBIA PWS
Already have an account?

Existing customers can login to their Columbia Pws account to pay their Columbia water bill by clicking here.

Want to create a new account?

If you want to pay your Columbia 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 Columbia 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 Columbia 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 COLUMBIA WATER SERVICE
Starting Your Service

Moving to a new house or apartment in Columbia means you will often need to put the water in your name with Columbia 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 Columbia means you will likely need to take your name off of the water bill with Columbia 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

The estimated price of bottled water

$2.5 in USD (1.5-liter)

USER SUBMITTED RATINGS

Columbia tap water
  • Drinking Water Pollution and Inaccessibility 21% Low
  • Water Pollution 25% Low
  • Drinking Water Quality and Accessibility 79% High
  • Water Quality 75% High

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

Related FAQS

Columbia 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 Columbia's Water. If you would like to see the original version of the report, please click here.

COLUMBIA PWS

Public Water System ID Number: MO3010181

2020 Annual Water Quality Report

(Consumer Confidence Report)

This report is intended to provide you with important information about your drinking water and the efforts made to provide safe drinking water.

Attencion!

Este informe contiene información muy importante. Tradúscalo o prequntele a alguien que lo entienda bien. [Translated: This report contains very important information. Translate or ask someone who understands this very well.]

What is the source of my water?

The sources of drinking water (both tap water and bottled water) include rivers, lakes, streams, ponds, reservoirs, springs, and groundwater wells. As water travels over the surface of the land or through the ground, it dissolves naturally-occurring minerals and, in some cases, radioactive material, and can pick up substances resulting from the presence of animals or from human activity.

Our water comes from the following source(s):

Source Name

Type

WELL # 15

GROUND WATER

WELL #1, 2, 3, 5, 6, 7, 8. 9, 10, 11, 12, 13, 14, 15,

GROUND WATER

16, 17 & 18

 

ASH ST NEAR W ASHP PUMP STATION -

GROUND WATER

ABANDON

 

CRUMP WELL

GROUND WATER

WELL # 8 FAIRVIEW CHURCH WELL

GROUND WATER

OLD WELL # 10 ROUTE TT KATY TRAIL WL

GROUND WATER

EL RAY HEIGHTS

GROUND WATER

BOONE CO # 1 BROWN SCHOOL RD - OTHER

GROUND WATER

Source Water Assessment

The Department of Natural Resources conducted a source water assessment to determine the susceptibility of our water source to potential contaminants. This process involved the establishment of source water area delineations for each well or surface water intake and then a contaminant inventory was performed within those delineated areas to assess potential threats to each source. Assessment maps and summary information sheets are available on the internet at http://drinkingwater.missouri.edu/swip/swipmaps/pwssid.htm. To access the maps for your water system you will need the State-assigned identification code, which is printed at the top of this report. The Source Water Inventory Project maps and information sheets provide a foundation upon which a more comprehensive source water protection plan can be developed. Why are there contaminants in my water?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).

Contaminants that may be present in source water include:A. Microbial contaminants, such as viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife. B. Inorganic contaminants, such as salts and metals, which can be naturally- occurring or result from urban stormwater runoff, industrial, or domestic wastewater discharges, oil and gas production, mining, or farming.

C. Pesticides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runoff, and residential uses.

D. Organic chemical contaminants, including synthetic and volatile organic chemicals, which are byproducts of industrial processes and petroleum production, and can also come from gas stations, urban stormwater runoff, and septic systems.

E. Radioactive contaminants, which can be naturally-occurring or be the result of oil and gas production and mining activities.

In order to ensure that tap water is safe to drink, the Department of Natural Resources prescribes regulations which limit the amount of certain contaminants in water provided by public water systems. Department of Health regulations establish limits for contaminants in bottled water which must provide the same protection for public health.

Is our water system meeting other rules that govern our operations?The Missouri Department of Natural Resources regulates our water system and requires us to test our water on a regular basis to ensure its safety. Our system has been assigned the identification number MO3010181 for the purposes of tracking our test results. Last year, we tested for a variety of contaminants. The detectable results of these tests are on the following pages of this report. Any violations of state requirements or standards will be further explained later in this report.

How might I become actively involved?If you would like to observe the decision-making process that affect drinking water quality or if you have any further questions about your drinking water report, please call us at 573-874-6242 to inquire about scheduled meetings or contact persons.

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

Terms and Abbreviations

Population: 100733. This is the equivalent residential population served including non-bill paying customers.

90th percentile: For Lead and Copper testing. 10% of test results are above this level and 90% are below this level.

AL: Action Level, or the concentration of a contaminant which, when exceeded, triggers treatment or other requirements which a water system must follow.

HAA5: Haloacetic Acids (mono-, di- and tri-chloracetic acid, and mono- and di- bromoacetic acid) as a group.

LRAA: Locational Running Annual Average, or the locational average of sample analytical results for samples taken during the previous four calendar quarters.

MCLG: Maximum Contaminant Level Goal, or the level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of safety.

MCL: Maximum Contaminant Level, or the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.

n/a: not applicable.

nd: not detectable at testing limits.

NTU: Nephelometric Turbidity Unit, used to measure cloudiness in drinking water.

ppb: parts per billion or micrograms per liter.

ppm: parts per million or milligrams per liter.

RAA: Running Annual Average, or the average of sample analytical results for samples taken during the previous four calendar quarters.

Range of Results: Shows the lowest and highest levels found during a testing period, if only one sample was taken, then this number equals the Highest Test Result or Highest Value.

SMCL: Secondary Maximum Contaminant Level, or the secondary standards that are non-enforceable guidelines for contaminants and may cause cosmetic effects (such as skin or tooth discoloration) or aesthetic effects (such as taste, odor or color) in drinking water. EPA recommends these standards but does not require water systems to comply TT: Treatment Technique, or a required process intended to reduce the level of a contaminant in drinking water.

TTHM: Total Trihalomethanes (chloroform, bromodichloromethane, dibromochloromethane, and bromoform) as a group.

April 27, 2021

COLUMBIA PWS

Public Water System ID Number: MO3010181

2020 Annual Water Quality Report

(Consumer Confidence Report)

Contaminants Report

COLUMBIA PWS will provide a printed hard copy of the CCR upon request. To request a copy of this report to be mailed,

please call us at 573-874-6242. The CCR can also be found on the internet at www.dnr.mo.gov/ccr/MO3010181.pdf.

The state has reduced monitoring requirements for certain contaminants to less often than once per year because the concentrations of these contaminants are not expected to vary significantly from year to year. Records with a sample year more than one year old are still considered representative. No data older than 5 years need be included. If more than one sample is collected during the monitoring period, the Range of Sampled Results will show the lowest and highest tested results. The Highest Test Result, Highest LRAA, or Highest Value must be below the maximum contaminant level (MCL) or the contaminant has exceeded the level of health based standards and a violation is issued to the water system.

Regulated Contaminants

 

 

 

 

 

Highest

 

Range of

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Regulated

Collection

 

 

Sampled

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Test

 

 

Unit

MCL

 

MCLG

 

 

 

 

 

 

 

 

 

 

Typical Source

 

Contaminants

Date

 

 

 

 

Result(s)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Result

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(low – high)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BARIUM

1/16/2018

 

 

 

0.118

 

0.118

 

ppm

2

 

2

 

 

Discharge of drilling wastes; Discharge from metal refineries;

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Erosion of natural deposits

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CHROMIUM

1/16/2018

 

 

 

1.12

 

1.12

 

ppb

100

 

100

 

 

 

 

 

 

 

Discharge from steel and pulp mills

 

FLUORIDE

1/16/2018

 

 

 

0.55

 

0.55

 

ppm

4

 

4

 

 

Natural deposits; Water additive which promotes strong teeth

NITRATE-

1/21/2020

 

 

 

0.027

 

0.027

 

ppm

10

 

10

 

 

Runoff from fertilizer use; Leaching from septic tanks, sewage;

NITRITE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Erosion of natural deposits

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Disinfection

 

 

 

 

 

Monitoring

 

Highest

Range of Sampled

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sample Point

 

 

 

 

Result(s)

 

Unit

 

 

MCL

 

MCLG

 

 

Typical Source

 

Byproducts

 

 

Period

 

LRAA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(low – high)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(HAA5)

DBPDUAL-01

 

 

2020

 

26

13.5 - 30.8

 

 

ppb

 

60

 

 

0

 

Byproduct of drinking water disinfection

(HAA5)

DBPDUAL-02

 

 

2020

 

27

9.12 - 51.1

 

 

ppb

 

60

 

 

0

 

Byproduct of drinking water disinfection

(HAA5)

DBPDUAL-03

 

 

2020

 

26

15 - 30.6

 

 

ppb

 

60

 

 

0

 

Byproduct of drinking water disinfection

(HAA5)

DBPDUAL-04

 

 

2020

 

25

12.8 - 33.8

 

 

ppb

 

60

 

 

0

 

Byproduct of drinking water disinfection

(HAA5)

DBPDUAL-05

 

 

2020

 

25

12.9 - 36

 

 

ppb

 

60

 

 

0

 

Byproduct of drinking water disinfection

(HAA5)

DBPDUAL-06

 

 

2020

 

25

11.8 - 38.9

 

 

ppb

 

60

 

 

0

 

Byproduct of drinking water disinfection

TTHM

DBPDUAL-01

 

 

2020

 

39

30.9 - 33.7

 

 

ppb

 

80

 

 

0

 

Byproduct of drinking water disinfection

TTHM

DBPDUAL-02

 

 

2020

 

40

34.2 - 40.6

 

 

ppb

 

80

 

 

0

 

Byproduct of drinking water disinfection

TTHM

DBPDUAL-03

 

 

2020

 

38

33.7 - 34.5

 

 

ppb

 

80

 

 

0

 

Byproduct of drinking water disinfection

TTHM

DBPDUAL-04

 

 

2020

 

41

31.8 - 35.7

 

 

ppb

 

80

 

 

0

 

Byproduct of drinking water disinfection

TTHM

DBPDUAL-05

 

 

2020

 

41

33 - 35

 

 

ppb

 

80

 

 

0

 

Byproduct of drinking water disinfection

TTHM

DBPDUAL-06

 

 

2020

 

40

34.2 - 38.3

 

 

ppb

 

80

 

 

0

 

Byproduct of drinking water disinfection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lead and

 

 

 

 

 

90th Percentile: 90%

Range of Sampled

 

 

 

 

 

 

 

Sites

 

 

 

 

 

Date

 

 

 

of your water utility

 

Results

 

Unit

 

 

AL

 

 

 

 

Typical Source

 

Copper

 

 

 

 

 

 

 

 

Over AL

 

 

 

 

 

 

 

 

levels were less than

 

(low – high)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COPPER

2017 - 2019

 

 

0.0582

0.00499 - 0.156

 

 

ppm

 

1.3

 

0

 

Corrosion of household plumbing systems

LEAD

2017 - 2019

 

 

3.06

0 - 5.34

 

 

ppb

 

15

 

0

 

Corrosion of household plumbing systems

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Microbiological

 

 

 

 

 

 

 

Result

 

 

 

 

 

 

 

MCL

 

 

 

MCLG

 

Typical Source

 

COLIFORM (TCR)

 

In the month of July, 0.79% of samples returned as

 

Treatment

 

0

 

 

Naturally present in the environment

 

 

 

 

 

 

 

 

 

positive

 

 

 

 

 

 

Technique Trigger

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unregulated Contaminant Monitoring Rule

 

Collection

 

Highest Value (HV)

 

 

 

Range of Sampled Result(s)

 

Unit

 

(UCMR)

 

 

 

 

 

 

Date of HV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bromide

 

 

 

 

 

 

06/17/19

 

 

 

 

72.5

 

 

 

 

 

 

 

 

 

68.8 - 72.5

 

ppb

 

HAA5

 

 

 

 

 

 

06/17/19

 

 

 

 

19.07

 

 

 

 

 

 

 

 

 

10.9 - 19.07

 

ppb

 

HAA6Br

 

 

 

 

 

 

06/17/19

 

 

 

 

16.6

 

 

 

 

 

 

 

 

 

9.2 - 16.6

 

ppb

 

HAA9

 

 

 

 

 

 

06/17/19

 

 

 

 

33.24

 

 

 

 

 

 

 

 

 

18.3 - 33.24

 

ppb

 

Manganese

 

 

 

 

 

06/17/19

 

 

 

 

11.6

 

 

 

 

 

 

 

 

 

4.9 - 11.6

 

ppb

Total Organic Carbon

 

 

 

06/17/19

 

 

 

 

2600

 

 

 

 

 

 

 

 

 

1980 - 2600

 

ppb

Violations and Health Effects Information

During the 2020 calendar year, we had the below noted violation(s) of drinking water regulations.

Compliance Period

Analyte

Type

No Violations Occurred in the Calendar Year of 2020

Special Lead and Copper Notice:

If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. COLUMBIA PWS 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 (800-426-4791) or at http://water.epa.gov/drink/info/lead/index.cfm.

April 27, 2021

COLUMBIA PWS

Public Water System ID Number: MO3010181

2020 Annual Water Quality Report

(Consumer Confidence Report)

All contaminant sample results from past and present compliance monitoring are available online at the Missouri DNR Drinking Water Watch website at www.dnr.mo.gov/DWW/. To see the Lead and Copper results, enter your water system’s name in the box titled Water System Name, then select Find Water Systems at the bottom of the page. On the next screen, click on the Water System Number. At the top of the next page, under the Help column, click on Other Chemical Results by Analyte. Scroll down to Lead and click the blue Analyte Code (1030). A Sample Collection Date range may need to be entered. The Lead and Copper locations will be displayed under the heading Sample Comments. Scroll to find your location and click on the Sample No. for results. If you assisted the water system in taking a Lead and Copper sample but cannot find your location on the list, please contact COLUMBIA PWS for your results.

Optional Monitoring (not required by EPA)

Optional Contaminants

Monitoring is not required for optional contaminants.

Secondary Contaminants

Collection

Your Water System

Range of Sampled

Unit

SMCL

Date

Highest Sampled Result

Result(s) (low - high)

 

 

 

ALKALINITY, CACO3 STABILITY

1/16/2018

121

121

MG/L

 

BROMIDE

1/8/2020

0.0688

0.0688

MG/L

0.05

CALCIUM

1/16/2018

35.3

35.3

MG/L

 

CHLORIDE

1/16/2018

36.4

36.4

MG/L

250

HARDNESS, CARBONATE

1/16/2018

170

170

MG/L

 

IRON

1/16/2018

0.105

0.105

MG/L

0.3

MAGNESIUM

1/16/2018

19.9

19.9

MG/L

 

MANGANESE

1/8/2020

0.0049

0.0049

MG/L

0.05

PH

1/16/2018

8.55

8.55

PH

8.5

POTASSIUM

1/16/2018

5.14

5.14

MG/L

 

SODIUM

1/16/2018

36.9

36.9

MG/L

 

SULFATE

1/16/2018

84.6

84.6

MG/L

250

TDS

1/16/2018

292

292

MG/L

500

Secondary standards are non-enforceable guidelines for contaminants that may cause cosmetic effects (such as skin or tooth discoloration) or aesthetic effects (such as taste, odor or color) in drinking water. EPA recommends these standards but does not require water systems to comply.

April 27, 2021

Contaminants


Columbia

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: 100733
  • Data available: 2012-2017
  • Data Source: Groundwater
  • Total: 23

Contaminants That Exceed Guidelines

  • Bromodichloromethane
  • Bromoform
  • Chloroform
  • Chromium (hexavalent)
  • Dibromochloromethane
  • Dichloroacetic acid
  • Total trihalomethanes (TTHMs)
  • Trichloroacetic acid

Other Detected Contaminants

  • Barium
  • Bromochloroacetic acid
  • Bromodichloroacetic acid
  • Chlorodibromoacetic acid
  • Chromium (total)
  • Dibromoacetic acid
  • Fluoride
  • Haloacetic acids (HAA5)
  • Manganese
  • Molybdenum
  • Monobromoacetic acid
  • Nitrate and nitrite
  • Strontium
  • Tribromoacetic acid
  • 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

Layer 1
Layer 1
Layer 1
Layer 1