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Is Casa Grande Tap Water Safe to Drink?

Yes! Generally Safe to Drink*

LAST UPDATED: 7:48 pm, July 16, 2022
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Table of Contents

Can You Drink Tap Water in Casa Grande?

Yes, Casa Grande's tap water is generally considered safe to drink as Casa Grande 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, Casa Grande's water utility, Arizona Water Co - Pinal Valley, had 1 non-health-based violations of the Safe Drinking Water Act. For more details on the violations, please see our violation history section below. The last violation for Casa Grande was resolved on March 31, 2016. This assessment is based on the Arizona Water Co - Pinal Valley 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 Casa Grande Tap Water

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

Casa Grande Tap Water Safe Drinking Water Act Violation History - Prior 10 Years

Below is a ten year history of violations for the water system named Arizona Water Co - Pinal Valley for Casa Grande in Arizona. For more details please see the "What do these Violations Mean?" section below.

For the compliance period beginning Oct. 1, 2020, Casa Grande had 1 non-health based Safe Drinking Water Act violation with the violation category being Reporting Violation, more specifically, the violation code was Report Sample Result/Fail Monitor (RTCR) which falls into the Microbials rule code group, and the Total Coliform Rules rule code family for the following contaminant code: Revised Total Coliform Rule.

From Jan. 1, 2016 to March 31, 2016, Casa Grande had 1 non-health based Safe Drinking Water Act violation with the violation category being Monitoring and Reporting, more specifically, the violation code was Monitoring, Regular which falls into the Chemicals rule code group, and the Inorganic Chemicals rule code family for the following contaminant code: Arsenic.

From Oct. 1, 2015 to Dec. 31, 2015, Casa Grande had 1 non-health based Safe Drinking Water Act violation with the violation category being Monitoring and Reporting, more specifically, the violation code was Monitoring and Reporting (DBP) which falls into the Disinfectants and Disinfection Byproducts Rule rule code group, and the Stage 1 Disinfectants and Disinfection Byproducts Rule rule code family for the following contaminant code: Chlorine.

From Jan. 1, 2015 to March 31, 2015, Casa Grande had 1 non-health based Safe Drinking Water Act violation with the violation category being Monitoring and Reporting, more specifically, the violation code was Monitoring, Regular which falls into the Chemicals rule code group, and the Inorganic Chemicals rule code family for the following contaminant code: Arsenic.

From Jan. 1, 2015 to March 31, 2015, Casa Grande had 1 non-health based Safe Drinking Water Act violation with the violation category being Monitoring and Reporting, more specifically, the violation code was Monitoring, Regular which falls into the Chemicals rule code group, and the Inorganic Chemicals rule code family for the following contaminant code: Nitrate.

From Jan. 1, 2013 to Dec. 31, 2015, Casa Grande had 3 non-health based Safe Drinking Water Act violations with the violation category being Monitoring and Reporting, more specifically, the violation code was Monitoring, Regular which falls into the Chemicals rule code group, and the Synthetic Organic Chemicals rule code family for the following contaminant codes: OXAMYL, OXAMYL, OXAMYL.

Is there Lead in Casa Grande Water?

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

While Casa Grande 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 Casa Grande 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 - Picacho Aviation TNG Site - near Casa Grande 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 Casa Grande 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.

Casa Grande SDWA Violation History Table - Prior 10 Years

Compliance Period Status Health-Based? Category Code Code Rule Code Contaminant Code Rule Group Code Rule Family Code
10/01/2020 - Resolved No Reporting Violation (RPT) Report Sample Result/Fail Monitor (RTCR) (4B) Revised Total Coliform Rule (111) Revised Total Coliform Rule (8000) Microbials (100) Total Coliform Rules (110)
01/01/2016 - 03/31/2016 Resolved No Monitoring and Reporting (MR) Monitoring, Regular (03) Arsenic (332) Arsenic (1005) Chemicals (300) Inorganic Chemicals (330)
10/01/2015 - 12/31/2015 Resolved No Monitoring and Reporting (MR) Monitoring and Reporting (DBP) (27) Stage 1 Disinfectants and Disinfection Byproducts Rule (210) Chlorine (0999) Disinfectants and Disinfection Byproducts Rule (200) Stage 1 Disinfectants and Disinfection Byproducts Rule (210)
01/01/2015 - 03/31/2015 Resolved No Monitoring and Reporting (MR) Monitoring, Regular (03) Arsenic (332) Arsenic (1005) Chemicals (300) Inorganic Chemicals (330)
01/01/2015 - 03/31/2015 Resolved No Monitoring and Reporting (MR) Monitoring, Regular (03) Nitrates (331) Nitrate (1040) Chemicals (300) Inorganic Chemicals (330)
01/01/2013 - 12/31/2015 Resolved No Monitoring and Reporting (MR) Monitoring, Regular (03) Synthetic Organic Chemicals (320) OXAMYL (2036) Chemicals (300) Synthetic Organic Chemicals (320)
01/01/2013 - 12/31/2015 Resolved No Monitoring and Reporting (MR) Monitoring, Regular (03) Synthetic Organic Chemicals (320) OXAMYL (2036) Chemicals (300) Synthetic Organic Chemicals (320)
01/01/2013 - 12/31/2015 Resolved No Monitoring and Reporting (MR) Monitoring, Regular (03) Synthetic Organic Chemicals (320) OXAMYL (2036) Chemicals (300) Synthetic Organic Chemicals (320)

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
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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
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.

Casa Grande Water - Frequently Asked Questions

HOW DO I CONTACT CASA GRANDE CUSTOMER SERVICE?
To contact customer service for the Casa Grande water provider, Arizona Water Co - Pinal Valley, please use the information below.
By Phone: 602-240-6860
By Email: rlynde@azwater.com
By Mail: ARIZONA WATER CO
3805 N BLACK CANYON HWY
PHOENIX, AZ, 85015-5351
HOW TO PAY BILL FOR ARIZONA WATER CO - PINAL VALLEY
Already have an account?

Existing customers can login to their Arizona Water Co - Pinal Valley account to pay their Casa Grande water bill by clicking here.

Want to create a new account?

If you want to pay your Arizona Water Co - Pinal Valley 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 Casa Grande 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 Casa Grande 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 CASA GRANDE WATER SERVICE
Starting Your Service

Moving to a new house or apartment in Casa Grande means you will often need to put the water in your name with Arizona Water Co - Pinal Valley. 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 Casa Grande means you will likely need to take your name off of the water bill with Arizona Water Co - Pinal Valley. 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

USER SUBMITTED RATINGS

Casa Grande tap water
  • Drinking Water Pollution and Inaccessibility 31% Low
  • Water Pollution 32% Low
  • Drinking Water Quality and Accessibility 69% High
  • Water Quality 68% High

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

Related FAQS

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

ARIZONA WATER COMPANY

– 2020 ANNUAL WATER QUALITY REPORT FOR PINAL VALLEY, ARIZONA, PWSID NO. 11-009

This report contains important information about your drinking water.

Este informe contiene información importante sobre su agua potable.

Tradúzcalo o hable con alguien que lo entienda bien.

Arizona Water Company provides groundwater to its Pinal Valley customers from wells located throughout the Casa Grande and Coolidge areas.

All water samples are collected by state-certified employees of Arizona Water Company. Samples are analyzed by state-certified independent laboratories and the results are forwarded to the Arizona Department of Environmental Quality (“ADEQ”). The following report provides detailed information about the quality of the water delivered to customers. The water supplied by Arizona Water Company complies with all state and federal safe drinking water standards and regulations.

DETECTED WATER QUALITY CONSTITUENTS - GROUNDWATER

Primary Standards

Water Quality

 

 

 

Range of

Sample

 

Constituent

Units

MCLG

MCL

Levels Detected

Year

Typical Source of Detected Constituent

 

 

 

 

 

 

Inorganics

 

Antimony

ppb

0

6

ND - 0.9

2014, 2020

Discharge from petroleum refineries, fire retardants; ceramics;

electronics, solder

 

 

 

 

 

 

 

 

 

 

 

 

ND - 7.4

 

Erosion of natural deposits; runoff from orchards; runoff from glass

Arsenic

ppb

0

10

Highest Running Annual

2014, 2020

and electronics production wastes

 

 

 

 

Average - 7

 

 

 

 

 

 

 

Barium

ppm

2

2

ND - 0.1

2014, 2020

Discharge of drilling wastes; discharge from metal refineries; erosion

of natural deposits

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chromium, Total

ppb

100

100

ND - 34

2014, 2020

Discharge from steel and pulp mills; erosion of natural deposits

Fluoride

ppm

4

4

0.1 - 3.1

2014, 2020

Erosion of natural deposits; water additive which promotes strong

teeth; discharge from fertilizer and aluminum factories

 

 

 

 

 

 

 

 

Nitrate (as Nitrogen)

ppm

10

10

 

1 - 8

2020

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

 

erosion of natural deposits

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Selenium

ppb

50

50

ND - 7

2014, 2020

Discharge from petroleum and metal refineries; erosion of natural

deposits; discharge from mines

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Radiological

 

 

 

 

 

 

 

 

 

 

Alpha Emitters

pCi/L

0

15

ND - 8.1

2014, 2017,

Erosion of natural deposits

2019, 2020

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Combined Radium

pCi/L

0

5

ND - 0.8

2014, 2017,

Erosion of natural deposits

2019, 2020

 

 

 

 

 

 

 

 

 

 

 

 

Disinfectant / Disinfection Byproducts

 

 

 

 

HLRAA

 

 

 

 

 

 

 

 

(Average

 

Range of

 

 

Water Quality

 

MCLG

MCL

Level

 

Levels

Sample

 

Constituent

Units

(MRDLG)

(MRDL)

Detected)

 

Detected

Year

Typical Source of Detected Constituent

Chlorine Residual

ppm

(4)

(4)

(1.4)

 

0.5 - 2.1

2020

Drinking water disinfection

Haloacetic Acids (five)

ppb

NA

60

4

 

ND - 5

2020

Byproduct of drinking water disinfection

 

 

 

 

 

 

 

 

 

Total Trihalomethanes

ppb

NA

80

38

 

7.5 - 36.6

2020

Byproduct of drinking water disinfection

 

 

 

 

Additional Constituents (Unregulated)

 

 

 

 

 

 

 

 

Naturally-occurring element; commercially available in combination

Germanium

ppt

NS

NS

(798)

 

ND - 1600

2020

with other elements and minerals; a by-product of zinc ore

 

processing; used in infrared optics, fiber-optic systems, electronics

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

and solar applications

 

 

 

 

 

 

 

 

 

Haloacetic Acids (six)

ppb

NS

NS

(4.2)

 

1.8 - 6.9

2020

Byproduct of drinking water disinfection

 

 

 

 

 

 

 

 

 

Haloacetic Acids (nine)

ppb

NS

NS

(4.5)

 

2.0 - 6.9

2020

Byproduct of drinking water disinfection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Naturally-occurring element; commercially available in combination

Manganese

ppt

NS

NS

(254)

 

ND - 850

2020

with other elements and minerals; used in steel production, fertilizer,

 

batteries and fireworks; drinking water and wastewater treatment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

chemical; essential nutrient

Sodium

ppm

NS

NS

(157)

 

27 - 210

2018, 2020

Unknown

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lead and Copper Monitoring

 

 

 

 

90th

 

Number of

 

 

 

 

 

 

Percentile

 

Samples That

 

 

Water Quality

 

 

Action

of Sample

 

Exceeded the

Sample

 

Constituent

Units

MCLG

Level

Results

 

Action Level

Year

Typical Source of Detected Constituent

Copper

ppm

1.3

1.3

0.1

 

0

2019

Internal corrosion of household water plumbing systems; erosion of

 

natural deposits; leaching from wood preservatives

 

 

 

 

 

 

 

 

Lead

ppb

0

15

ND

 

1

2019

Internal corrosion of household water plumbing systems; erosion of

 

natural deposits

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Your drinking water complies with the United States Environmental Protection Agency’s (“USEPA”) safe drinking water standard for arsenic, though it contains low levels of arsenic. USEPA's safe drinking water standard balances the current understanding of arsenic's possible health effects against the costs of removing arsenic from drinking water. USEPA continues to research the health effects of low levels of arsenic, which is a mineral known to cause cancer in humans at high concentrations and is linked to other health effects such as skin damage and circulatory problems.

Nitrate in drinking water at levels above 10 ppm is a health risk for infants of less than six months of age. syndrome. Nitrate levels may rise quickly for short periods of time because of rainfall or agricultural activity. your health care provider.

High nitrate levels in drinking water can cause blue baby If you are caring for an infant you should ask advice from

Note: In addition to the constituents listed in this report, Arizona Water Company conducted monitoring for over 80 additional constituents and the results show none of those constituents were detected in the water. Data presented are from the most recent testing done in accordance with applicable regulations. Some constituents are monitored less frequently than once a year because either their concentrations do not change frequently or they are not likely to be detected. Therefore, some of the water quality testing data contained in this report, although representative, may be more than one year old. If you have questions about this water quality report, please contact Regina Lynde, Environmental Compliance Manager, Arizona Water Company, P.O. Box 29006, Phoenix, Arizona 85038-9006; telephone (602) 240-6860 or email mail@azwater.com.

In 2003 and 2004, ADEQ completed a Source Water Assessment of the water sources used by Arizona Water Company's Pinal Valley water system. ADEQ reviewed the adjacent land uses that may pose a potential risk to the water sources. The result of the Assessment was a low risk to the water sources.

The complete Assessment is available for inspection at ADEQ, 1110 West Washington Street, Phoenix, Arizona 85007, between the hours of 8:00 a.m. and 5:00 p.m. Electronic copies are available from ADEQ at recordscenter@azdeq.gov. For more information visit ADEQ’s Source Water Assessment and Protection Unit website at: www.azdeq.gov/environ/water/dw/swap.html.

The USEPA and ADEQ require Arizona Water Company to provide the following information:

The monthly compliance Total Coliform reports must be submitted to ADEQ by the tenth of the following month per the Revised Total Coliform Rule. Arizona Water Company correctly and timely took the necessary compliance samples. However, Arizona Water Company submitted the October Total Coliform reports past the deadline of November 10. Arizona Water Company submitted the October Total Coliform reports to ADEQ on November 25. Despite the late submittal, all samples were taken timely, and all results were negative, and in compliance with safe drinking water standards.

This is an alert about your drinking water and a cosmetic dental problem that might affect children under nine years of age. At low levels, fluoride can help prevent cavities, but children drinking water containing more than 2 milligrams per liter (mg/l) of fluoride may develop cosmetic discoloration of their permanent teeth (dental fluorosis). The drinking water provided by your community water system has a fluoride level ranging from 0.1 to 3.1 mg/l.

Dental fluorosis in its moderate or severe forms may result in a brown staining and or pitting of the permanent teeth. This problem occurs only in developing teeth, before they erupt from the gums. Children under nine should be provided with alternative sources of drinking water or water that has been treated to remove the fluoride to avoid the possibility of staining and pitting of their permanent teeth. You may also want to contact your dentist about proper use by young children of fluoride-containing products. Older children and adults may safely drink the water.

Drinking water containing more than 4 mg/l of fluoride (the USEPA's drinking water standard) can increase your risk of developing bone disease. Your drinking water does not contain more than 4 mg/l of fluoride, but we're required to notify you when we discover that the fluoride levels in your drinking water exceed 2 mg/l because of this cosmetic problem.

Some home water treatment units are also available to remove fluoride from drinking water. To learn more about available home water treatment units, you may call NSF International at 1-877-8-NSF-HELP.

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

Some people may be more vulnerable to constituents in drinking water than the general population. Immuno-compromised 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. USEPA/CDC guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and other microbial constituents are available from the Safe Drinking Water Hotline (800- 426-4791).

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

Constituents that may be present in source water include:

  • Microbials, such as viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife.
  • Inorganics, 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.
  • Pesticides and herbicides, which may come from a variety of sources such as agriculture, urban stormwater runoff, and residential uses.
  • Organics, including synthetic and volatile organic chemicals, which are byproducts of industrial processes and petroleum production. They can also come from gas stations, urban stormwater runoff, and septic systems.
  • Radiological material, 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, USEPA prescribes regulations which limit the amount of certain constituents in water provided by public water systems. FDA regulations establish limits for constituents in bottled water which must provide the same protection for public health.

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. Arizona Water Company 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 USEPA's Safe Drinking Water Hotline or at http://www.epa.gov/lead.

 

 

DEFINITIONS, ABBREVIATIONS, AND UNIT DESCRIPTIONS:

Action

=

The concentration of a constituent which, if exceeded, triggers treatment or other requirements which a water system must

Level

 

follow.

CDC

=

United States Centers for Disease Control and Prevention

FDA

=

United States Food and Drug Administration

HLRAA

=

Highest Locational Running Annual Average

MCL

=

Maximum Contaminant Level, the highest level of a constituent that is allowed in drinking water. MCLs are set as close to the MCLGs using the best

 

 

available treatment technology as is economically and technologically feasible.

MCLG

=

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

 

 

margin of safety.

MRDL

=

Maximum Residual Disinfection Level, the highest level of a drinking water disinfectant allowed in drinking water. There is convincing evidence that

 

 

addition of a disinfectant is necessary for control of microbial contaminants.

MRDLG

=

Maximum Residual Disinfection Level Goal, the level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLGs do

 

 

not reflect the benefits of the use of disinfectants to control microbial constituents.

NA

=

None adopted

ND

=

None detected

NS

=

No standard

pCi/L

=

Picocuries per liter

ppb

=

Parts per billion, or micrograms per liter (µg/L)

ppm

=

Parts per million, or milligrams per liter (mg/L)

ppt

=

Parts per trillion, or nanograms per liter (ng/L)

PWSID

=

Public Water System Identification

March 2021

Contaminants


Arizona Water Company - Pinal Valley

EWG's drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group by the Arizona Department of Environmental Quality, 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: 88019
  • Data available: 2012-2017
  • Data Source: Groundwater
  • Total: 15

Contaminants That Exceed Guidelines

  • Arsenic
  • Chromium (hexavalent)
  • Nitrate
  • Nitrate and nitrite
  • Radium%2C combined (-226 & -228)
  • Total trihalomethanes (TTHMs)

Other Detected Contaminants

  • Barium
  • Chlorate
  • Chromium (total)
  • Fluoride
  • Haloacetic acids (HAA5)
  • Molybdenum
  • Selenium
  • Strontium
  • 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

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