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Is Hesperia Tap Water Safe to Drink?

Yes! Generally Safe to Drink*

LAST UPDATED: 7:48 pm, August 11, 2022
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Table of Contents

Can You Drink Tap Water in Hesperia?

Yes, Hesperia's tap water is generally considered safe to drink as Hesperia 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, Hesperia's water utility, Hesperia Wd, had 0 violations of the Safe Drinking Water Act. For more details on the violations, please see our violation history section below. The last violation for Hesperia was resolved on Dec. 31, 2010. This assessment is based on the Hesperia Wd 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 Hesperia Tap Water

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

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

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

From Dec. 1, 2010 to Dec. 31, 2010, Hesperia 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, Routine Minor (TCR) which falls into the Microbials rule code group, and the Total Coliform Rules rule code family for the following contaminant code: Coliform (TCR).

Is there Lead in Hesperia Water?

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

While Hesperia 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 Hesperia 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 - George Air Force Base - near Hesperia 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 Hesperia 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.

Hesperia 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
12/01/2010 - 12/31/2010 Resolved No Monitoring and Reporting (MR) Monitoring, Routine Minor (TCR) (24) Total Coliform Rule (110) Coliform (TCR) (3100) Microbials (100) Total Coliform Rules (110)

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.

Hesperia Water - Frequently Asked Questions

DID YOU KNOW THAT THE AVERAGE U.S. HOUSEHOLD USES APPROXIMATELY 400 GALLONS OF WATER PER DAY OR 100 GALLONS PER PERSON PER DAY?
There are many low-cost and no-cost ways to conserve water. Small changes can make a big difference. Try one today and soon it will become second nature. Visit https://www.epa.gov/watersense for more information.
HOW DO I CONTACT HESPERIA CUSTOMER SERVICE?
To contact customer service for the Hesperia water provider, Hesperia Wd, please use the information below.
By Phone: 760-947-7742
By Email: jmcdonald@cityofhesperia.us
By Mail: 9700 SEVENTH AVE
HESPERIA, CA, 92345
HOW TO PAY BILL FOR HESPERIA WD
Already have an account?

Existing customers can login to their Hesperia Wd account to pay their Hesperia water bill by clicking here.

Want to create a new account?

If you want to pay your Hesperia Wd 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 Hesperia 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 Hesperia 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 HESPERIA WATER SERVICE
Starting Your Service

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

Hesperia tap water
  • Drinking Water Pollution and Inaccessibility 30% Low
  • Water Pollution 40% Moderate
  • Drinking Water Quality and Accessibility 70% High
  • Water Quality 60% High

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

Related FAQS

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

-Board of Directors-

Cameron Gregg

Brigit Bennington

Bill Holland

Larry Bird

Rebekah Swanson

Nils Bentsen

Chair

Vice Chair

Board Member

Board Member

Board Member

General Manager

 

 

 

 

 

 

Dear Customers,

The Hesperia Water District is pleased to present to you the 2020 Consumer Confidence Report. This report contains detailed information regarding the quality of your drinking water, where it comes from, and other information in compliance with federal and state law. This report is intended to assure citizens that their drinking water is of the highest quality, meeting all Federal and State water quality standards since the implementation of the U.S. Environmental Protection Agency (USEPA) Safe Drinking Water Act was passed in 1974. The District serves a population of nearly 97,846 citizens including residential and business customers. In 2020, the District provided 13,252 acre-feet of potable (drinkable) water to customers. This equates to over 4.3 billion gallons of water Citywide. Through our trained and certified water professionals, citizens have the security of knowing their drinking water is the very best quality.

Thank you,

Hesperia Water District

Board of Directors

Important Facts about Drinking Water

Inorganic contaminants, such as salts and

Regulation of Drinking Water and

 

The sources of drinking water (both tap water and

metals, that can be naturally occurring or

 

Bottled Water Quality

 

 

 

 

 

 

 

 

 

 

 

bottled water) include rivers, lakes, streams, ponds,

result from urban storm water runoff, industrial

In order to ensure that tap water is safe to drink, the

reservoirs, springs, and wells. As water travels over

or domestic wastewater discharges, oil and

U.S. Environmental Protection Agency (U.S. EPA)

the surface of the land, or through the ground, it

gas production, mining, or farming.

 

and the State Water Resources Control Board (State

dissolves naturally-occurring minerals and, in some

Pesticides and herbicides, that may come from

Water Board) prescribe regulations that limit the

cases, radioactive material, and can pick up

a variety of sources such as agriculture, urban

amount of certain contaminants in water provided by

substances resulting from the presence of animals

stormwater runoff, and residential uses.

public water systems. State Water Board regulations

or from human activity. Currently, all water supplied

Organic chemical contaminants, including syn-

also establish limits for contaminants in bottled water

to the citizens

of Hesperia

comes

from

the

that provide the same protection for public health.

groundwater aquifer.

 

 

 

thetic and volatile organic chemicals, that are by

Drinking

water,

including

bottled

water,

may

 

 

 

-products of industrial processes and

petrole-

 

 

 

 

 

reasonably be expected to contain at

least small

Contaminants that may be present in source water

um production,

and can also come

from gas

amounts

of some contaminants. The presence of

include:

 

 

 

 

stations, urban

storm water runoff, agricultural

 

 

 

 

contaminants

does not necessarily

indicate

that

Microbial contaminants, such

as viruses

and

application, and septic systems.

 

 

water poses a health risk. More information about

bacteria, that may come from sewage treatment

Radioactive contaminants, that can be naturally-

contaminants

and

potential

health effects

can be

plants, septic

systems, agricultural

livestock

occurring or be the result of oil

and gas

obtained

by

calling the U.S. EPA’s Safe

Drinking

operations, and wildlife.

 

 

 

production and mining activities.

 

 

 

 

 

Water Hotline (1-800-426-4791).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stay Informed

Board Meetings are held the first and third Tuesday of each month at 6:30 pm in conjunction with City Council meetings. Meetings are open to the public and may be viewed live via the City’s website: www.cityofhesperia.us — City Hall is located at 9700 Seventh Ave, Hesperia, CA 92345

Noticia Importante

Este informe contiene información muy importante sobre su agua para beber. Favor de comunicarse Hesperia Water District a 9700 Seventh Ave. Hesperia, CA 92345 or (760) 947-1840 para asistirlo en español.

Information About Drinking Water

 

Additional Information About

 

 

 

 

 

Lead

 

 

 

 

 

 

 

 

Source Water Assessment

 

 

Drinking Water

 

 

 

 

 

 

 

 

 

If present, elevated levels of lead can cause serious health

A Source Water Assessment has been conducted on all 15

 

 

Drinking water, including bottled water, may reasonably be

problems,

especially

for

pregnant women

and

young

wells for the Hesperia Water District. The water sources are

 

 

children. Lead in drinking water is primarily from materials

most vulnerable to the activities of septic systems with high

 

 

expected to

contain at

least

 

small amounts

of

some

 

 

 

and

components associated with service lines and home

density.

 

 

contaminants.

The

presence

of

contaminants

does

not

 

 

plumbing.

Hesperia

Water

District is

responsible for

 

 

 

necessarily indicate

that

water

poses a

health

risk. More

For a copy of Source Water Assessment summaries, visit:

 

 

providing high quality drinking water, but cannot control the

 

 

information about contaminants and potential health effects

https://www.waterboards.ca.gov/drinking_water/certlic/

 

 

variety of materials used

in

plumbing components. When

 

 

can be

obtained

by calling the

USEPA’s

Safe Drinking

drinkingwater/DWSAP.html

 

 

your

water

has been sitting

for

several hours, you can

 

 

Water

Hotline at

1-800-426-4791. Some people may be

 

 

 

minimize the potential for lead exposure by flushing tap for

 

 

 

more vulnerable to contaminants in drinking water than the

 

 

 

30 seconds to 2 minutes before using water for drinking or

 

 

 

general population. Immunocompromised persons such as

 

 

 

cooking. (Optional: if you do so, you may wish to collect the

 

 

 

persons with cancer undergoing chemotherapy, persons who

 

 

 

flushed water and reuse

it for another beneficial purpose,

 

 

 

have undergone organ transplants, people with HIV/AIDS or

 

 

 

such as watering plants.) If you are concerned about lead in

 

 

 

other immune system disorders, some elderly, and infants

 

 

 

your

water, you may wish

to

have your water tested.

 

 

 

can be particularly

at risk from

infections. These

people

 

 

 

Information on lead in drinking water, testing methods, and

 

 

 

should seek advice from their health care providers. USEPA/

 

 

 

steps you can take to minimize exposure is available from

 

 

 

Centers for Disease Control (CDC) guidelines on appropriate

 

 

 

the Safe Drinking Water

Hotline or at http://www.epa.gov/

 

 

 

means to lessen the risk of infection by Cryptosporidium and

 

 

 

lead.

 

 

 

 

 

 

 

 

 

 

 

 

other microbial contaminants are available

from

the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Safe Drinking Water Hotline at 1-800-426-4791.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Key Terms

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Maximum Contaminant Level (MCL): The

highest

Nephelometric Turbidity Units (NTU): A unit for

pH: Range from 1 (acid) to 14 (basic). Neutral pH is

 

 

level of a contaminant that is allowed in drinking

expressing the cloudiness (turbidity) of a sample as

7.0. Drinking water ranges between 6.0 to 8.3.

 

 

water. Primary MCLs are set as close to the PHGs (or

measured by a nephelometric turbidimeter.

 

 

ND: not detectable at testing limit

 

 

MCLGs) as

is

economically

and

technologically

 

 

 

 

 

 

 

 

 

 

 

 

Primary Drinking Water Standards (PDWS): MCLs

 

 

 

feasible. Secondary MCLs are set to

protect the odor,

ppm: parts per million or milligrams per liter (mg/L)

 

 

and MRDLs for contaminants that affect health along

 

 

taste, and

appearance of drinking water.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

with their monitoring and

 

reporting requirements,

ppb: parts per billion or micrograms per liter (µg/L)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Maximum Contaminant Level Goal (MCLG): The

and water treatment requirements.

 

 

 

 

 

 

 

 

ppt: parts per trillion or nanograms per liter (ng/L)

 

 

level of a contaminant in drinking water

below which

Public Health Goal (PHG): The level of a contami-

 

 

there is no known or expected risk to health. MCLGs

pCi/L: picocuries per liter (a measure of radiation)

 

 

nant in drinking water below which there is no known

 

 

are set by the U.S. Environmental Protection Agency

 

 

or

expected risk to health.

PHGs

are set by

the

 

 

 

(U.S. EPA).

 

 

 

 

 

 

 

 

 

 

 

 

umho/cm: Micromhos per centimeter. A measure of

 

 

 

 

 

 

 

 

 

 

 

 

 

 

California Environmental Protection Agency.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the conductivity of a water sample, equivalent to

 

 

Maximum

Residual

Disinfectant

Level

(MRDL):

 

 

 

 

 

 

 

 

 

 

 

 

Regulatory Action Level (AL): The concentration of

microsiemens per centimeter.

 

 

The highest level of a disinfectant allowed in drinking

 

 

a contaminant which, if exceeded, triggers treatment

 

 

 

water. There is convincing evidence that addition of a

 

 

 

or

other

requirements that

a water system must

 

 

 

disinfectant

is

necessary for

 

control

of microbial

 

 

 

 

follow.

 

 

 

 

 

 

 

 

 

 

 

contaminants.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Maximum

Residual

Disinfectant

Level

Goal

Secondary Drinking

Water Standards

(SDWS):

 

 

 

MCLs for contaminants

that

affect

taste,

odor, or

 

 

 

(MRDLG): The level of a drinking water disinfectant

 

 

below which there is no known or expected risk to

appearance of the drinking water. Contaminants with

SDWSs do not affect the health at the MCL levels.

health. MRDLGs do not reflect the benefits of the use

 

of disinfectants to control microbial contaminants.

 

Water Conservation Tips and Information

Did you know that the average U.S. household uses approximately 400 gallons of water per day or 100 gallons per person per day?

There are many low-cost and no-cost ways to conserve water. Small changes can make a big difference. Try one today and soon it will become second nature.

  • Take short showers – a 5 minutes shower uses 4 to 5 gallons of water compared to up to 50 gallons for a bath.
  • Shut off water while brushing your teeth, washing your hair, and shaving and save up to 500 gallons a month.
  • Use a water-efficient showerhead. They are inexpensive, easy to install, and can save you up to 750 gallons a month.
  • Run your clothes washer and dishwasher only when they are full. You can save up to 1,000 gallons a month.
  • Water plants only when necessary.
  • Fix leaking toilets and faucets. Faucet washers are inexpensive and take only a few minutes to replace. To check
    your toilet for a leak, place a few drops of food coloring in the tank and wait. If it seeps into the toilet bowl without flushing, you have a leak. Fixing it or replacing it with a new, more efficient model can save up to 1,000 gallons a month.
  • Adjust sprinklers so only your lawn is watered. Apply water only as fast as the soil can absorb it and during the cooler parts of the day to reduce evaporation.
  • Teach your kids about water conservation to ensure a future generation that uses water wisely. Make it a family effort to reduce next month’s water bill!

Visit https://www.epa.gov/watersense for more information.

For questions or concerns regarding water quality, please contact:

City of Hesperia Water Quality Specialist

(760)947-1490

District Water Sources

The District’s water is extracted through 15 wells where the water is regularly tested and treated in compliance with all applicable state and federal regulations. The water is pumped directly from the Alto Subarea sub basin of the Mojave River Groundwater Basin (Basin). The Basin is recharged by rainfall and snowmelt from the local mountains as well as imported water from the State Water Project. Because the water quality of the groundwater meets the state and federal standards, the wells pump directly into the Dis- trict’s distribution system or into storage reservoirs after disinfection. The peak day of production for the District was on September 2, 2020 during which the District produced over 19.5 million gallons of water within a twenty-four hour period. This day was one of the hottest days of the year and all Hesperia households and businesses maintained positive water pressure.

The State allows us to monitor for some contaminants less than once per year because the concentrations of these contaminants do not change frequently. Some of our data, though representative, are more than one year old.

Sampling Results Showing the Detection of Coliform Bacteria

Microbiological

Highest # of

# of

 

 

 

 

 

 

 

 

 

 

Months in

MCL

 

MCLG

 

Typical Source of Bacteria

 

 

 

 

 

Contaminants

Detections

 

 

 

Violation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Coliforms are bacteria that are naturally

Total Coliform Bacteria

0

0

1 positive monthly

0

present in the environment and are used as

an indicator that other, potentially-harmful,

(STATE Total Coliform Rule)

sample

 

 

 

 

 

(in a month)

 

 

 

bacteria

may

be present. Coliforms

were

Sampled in 2020

 

(a)

 

 

 

 

 

found in more samples than allowed and

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

this was a warning of potential problems.

 

 

 

 

 

 

 

 

 

 

 

 

 

Fecal coliforms and E. coli are bacteria

 

 

 

A routine sample

 

whose presence indicates the water may be

 

 

 

 

contaminated with human or animal waste.

 

 

 

and a repeat

sam-

 

 

 

 

 

Microbes

in

these

wastes

can

cause

Fecal Coliform or E. coli

0

0

ple are total coliform

0

short-term effects, such as diarrhea, cramps,

(STATE Total Coliform Rule)

positive, and one of

 

 

 

(in a year)

 

 

nausea,

headaches,

or other

symptoms.

Sampled in 2020

 

these is also fecal

 

 

 

They may pose a special health risk for

 

 

 

 

 

 

coliform or E. coli

 

 

 

 

 

infants, young children, some of the elderly,

 

 

 

positive

 

 

 

 

 

 

 

and

people

with

severely compromised

 

 

 

 

 

 

 

 

 

 

 

 

immune systems.

 

 

 

 

 

 

 

 

 

 

 

 

E. coli

 

 

(b)

 

 

Human and animal fecal waste

 

 

0

0

 

0

 

 

 

 

 

 

 

(Federal Revised Total Coliform Rule)

 

 

 

 

 

 

 

 

 

(in a year)

 

 

 

 

 

 

 

 

 

 

 

Sampled in 2020

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  1. Two or more positive monthly samples is a violation of the MCL
  2. Routine and repeat samples are total coliform-positive and either is E. coli-positive or system fails to take repeat samples following E. coli-positive routine sample or system fails to analyze total coliform-positive repeat sample for E. coli.

Sampling Results Showing the Detection of Lead and Copper

Lead and

Sample

# of Samples

90th Percentile

 

 

# of Schools

 

 

 

AL

PHG

Requesting Lead

Typical Source of Contaminant

Copper

Date

Collected

Level Detected

 

 

Sampling

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lead

 

 

 

 

 

 

Internal

corrosion

of household water

2019

31

ND

15

0.2

1

plumbing systems; discharges from industrial

(ppb)

 

 

 

 

 

 

manufacturers; erosion of natural deposits

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Copper

 

 

 

 

 

 

Internal

corrosion

of household plumbing

2019

31

.13

1.3

0.3

Not applicable

systems; erosion of natural deposits; leaching

(ppm)

 

 

 

 

 

 

from wood preservatives

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Detection of Inorganic Contaminants

Contaminants

Sample Date

Average

 

 

 

Range

MCL

 

PHG (MCLG)

 

Violation

 

 

Major Sources in Drinking Water

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Arsenic

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Erosion

of

natural deposits;

runoff

from

 

 

2019

.38

 

 

 

 

ND — 3.3

10

 

.004

 

 

NO

 

 

orchards;

glass

and

electronics

production

(ppb)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

wastes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chromium, Total

 

 

2019

3.49

 

 

 

 

ND — 18

50

 

100

 

 

NO

 

 

Discharge

from

steel

and pulp

mills

and

(ppb)

 

 

 

 

 

 

 

 

 

 

 

chrome plating; erosion of natural deposits

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fluoride

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Erosion of natural deposits; water additive that

 

 

2019

.18

 

 

 

 

ND — .71

2

 

 

1

 

 

NO

 

 

promotes

strong

teeth;

discharge

from

(ppm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

fertilizer and aluminum factories

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Nitrate

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Runoff

and

leaching

from

fertilizer

use;

 

 

2020

1.0

 

 

 

 

ND — 2.8

10

 

10

 

 

NO

 

 

leaching

 

from

septic

tanks

and

sewage;

(ppm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

erosion of natural deposits

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Detection of Disinfection Byproducts & Disinfection Residuals

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contaminants

 

Sample

Average

 

 

 

Range

 

MCL

 

PHG (MCLG) or

 

Violation

 

 

 

Major Sources in Drinking Water

 

 

 

 

 

 

 

 

 

 

 

 

 

Date

 

 

 

 

 

(MRDLG)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total Trihalomethane

 

2020

 

ND

 

 

 

 

ND

 

 

80

 

 

 

N/A

 

NO

 

Byproduct of drinking water disinfection

 

(ppb)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total Haloacetic Acid

 

2020

 

ND

 

 

 

 

ND

 

 

60

 

 

 

N/A

 

NO

 

Byproduct of drinking water disinfection

 

(ppb)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chlorine (ppm)

 

2020

.25

 

 

 

.2 — .3

 

 

4

 

 

 

4(as Cl2)

 

NO

 

Drinking water disinfectant added for treatment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Detection of Regulated Contaminants with a Secondary Drinking Water Standard

 

 

 

 

 

 

 

 

 

 

 

Contaminants

Sample Date

Average

 

Range

 

Secondary MCL

 

Violation

 

 

 

Major Sources in Drinking Water

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chloride

2019

 

13.89

 

 

3.1 — 38

 

 

500 ppm

 

 

NO

Runoff/leaching

from

natural

deposits;

seawater

 

(ppm)

 

 

 

 

 

 

influence

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specific Conductance

2019

 

234

 

 

 

 

150 — 360

1,600 uhmo/cm

 

 

NO

Substances

 

that

form

ions

when

 

in water;

(uhmo/cm)

 

 

 

 

 

 

 

seawater influence

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sulfate

2019

 

10.93

 

 

1.7 — 26

 

 

500 ppm

 

 

NO

Runoff/leaching

from

natural

deposits;

industrial

 

(ppm)

 

 

 

 

 

 

wastes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total Dissolved Solids

2019

 

144.6

 

 

84 — 250

 

 

1,000 ppm

 

 

NO

Runoff/leaching from natural deposits

 

 

 

 

(ppm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Turbidity

2020

 

.13

 

 

 

 

ND — 0.6

 

 

 

5 NTU

 

 

NO

Soil runoff

 

 

 

 

 

 

 

 

 

 

 

 

(NTU)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Odor

2020

 

1.2

 

 

 

 

1 — 2

 

 

 

 

3 tons

 

 

NO

Naturally-occurring organic materials

 

 

 

 

(tons)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unregulated Parameters That May Interest Customers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Constituents

 

 

 

 

 

 

 

Sample Date

 

 

 

 

Average

 

 

 

 

 

 

 

 

Range

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Alkalinity (ppm)

 

 

 

 

 

 

2019

 

 

 

 

 

 

89.12

 

 

 

 

 

 

 

 

75 — 110

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bicarbonate (ppm)

 

 

 

 

 

 

2019

 

 

 

 

 

 

97.5

 

 

 

 

 

 

 

 

52 — 180

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Calcium (ppm)

 

 

 

 

 

 

2019

 

 

 

 

 

 

22.48

 

 

 

 

 

 

 

 

2 — 42

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hardness, as CaCO3 (ppm)

 

 

 

 

 

 

2019

 

 

 

 

 

 

69.13

 

 

 

 

 

 

 

 

5 — 140

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Magnesium (ppm)

 

 

 

 

 

 

2019

 

 

 

 

 

 

3.4

 

 

 

 

 

 

 

 

ND — 8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pH (pH units)

 

 

 

 

 

 

2019

 

 

 

 

 

 

7.58

 

 

 

 

 

 

 

 

7.4 — 9.6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Potassium (ppm)

 

 

 

 

 

 

2019

 

 

 

 

 

 

1.95

 

 

 

 

 

 

 

 

ND — 10.2

 

 

 

 

 

 

 

Sodium (ppm)

 

 

 

 

 

 

2019

 

 

 

 

 

 

24.5

 

 

 

 

 

 

 

 

ND — 42

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2020 Water Imported from Mojave Water Agency

The City imports a small amount of water from Mojave Water Agency (MWA). Out of the 14,392 acre feet that were produced, 3.06 acre feet were supplied by Mojave Water Agency. This equates to 997,832 gallons of the 4.68 billion gallons supplied to customers by the Hesperia Water Dis- trict. The Hesperia Water District receives water from “Turnout 4” shown on the MWA system map. The results of MWA’s 2020 Drinking Water Quality testing are reflected in their table below.

2020 MWA Drinking Water Quality Test Results

This report includes results from several tests for various constituents. Mojave Water Agency routinely monitors for constituents in the Agency’s drinking water in accordance with federal and state laws. Substances that are not detected (ND) are not listed. Values accompanied by < indicate a result less than the detection limit. The results below represent drinking water quality tests performed by Mojave Water Agency on the R3 wholesale water system and represents water produced from Wells 1, 2, 3, 4, & 5. These wells provide high quality drinking water through service connections to the cities of Victorville and Hesperia upon request. Contact your local water provider for detailed information on your water quality and where your water comes from.

Inorganic with Primary Drinking Standards

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wells: 1, 2, 3, 4, 5

Contaminants

Average

 

 

Sample

 

MCL

PHG

Sample

Violation

 

 

Major Sources in Drinking Water

 

 

 

 

 

 

 

 

Range

 

 

Date

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fluoride, Naturally Occurring

 

.28

 

.25 — .32

2

 

 

1

2019

 

NO

 

Erosion of natural deposits: water additive that promotes strong teeth;

 

(mg/L)

 

 

 

 

 

 

discharge from fertilizer and aluminum factories

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Nitrite (NO3-N)

 

.51

 

.44 — .60

10

 

10

2020

 

NO

 

Runoff and leaching from fertilizer use; leaching from septic tanks and

 

(mg/L)

 

 

 

 

 

sewage; erosion of natural deposits

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Nitrate + Nitrite (as N)

 

.51

 

.44 — .60

10

 

10

2020

 

NO

 

Runoff and leaching from fertilizer use; leaching from septic tanks and

 

(mg/L)

 

 

 

 

 

sewage; erosion of natural deposits

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Radioactive Contaminants

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wells: 1, 2, 3, 4, 5

 

Uranium (pCi/L)

 

.72

 

<1 — 1.3

20

 

.43

2019

 

NO

 

Erosion of natural deposits

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Radium 226+228 (pCi/L)

 

<1

 

<1 — 1.8

5

 

 

0

2019

 

NO

 

Erosion of natural deposits

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Disinfectant Byproducts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sample results are from the distribution system from Wells: 1, 2, 3, 4, 5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Haloacetic Acids (µg/L) (HAA5)

 

<1

 

<1 — 1.6

60

 

N/A

2020

 

NO

 

Byproduct of drinking water disinfection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total Trihalomethanes (µg/L) (TTHM)

 

6

 

<1 — 14.6

80

 

N/A

2020

 

NO

 

Byproduct of drinking water disinfection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Regulated Contaminants with Secondary Maximum Contaminant Levels

 

 

 

 

 

 

 

 

 

 

Wells: 1, 2, 3, 4, 5

Contaminants

Average

Sample Range

 

 

Secondary MCL

 

 

Sample Date

Violation

 

Major Sources in Drinking Water

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chloride (mg/L)

 

22

 

 

18 — 25

 

 

 

 

500

 

 

 

 

 

2019

 

 

NO

Runoff/leaching from natural deposits; seawater influence

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Odor (units)

 

1

 

 

1

 

 

 

 

 

3

 

 

 

 

 

2019

 

 

NO

Naturally occurring organic materials

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specific Conductance (uS/cm)

240

 

220 — 250

 

 

 

 

1600

 

 

 

 

 

2019

 

 

NO

Substances that form ions when in water; seawater influence

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sulfate (mg/L)

 

15

 

 

13 — 17

 

 

 

 

500

 

 

 

 

 

2019

 

 

NO

Runoff/leaching from natural deposits; industrial wastes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total Dissolved Solids (mg/L)

146

 

130 — 170

 

 

 

 

1000

 

 

 

 

 

2019

 

 

NO

Runoff/leaching from natural deposits

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Turbidity (NTU)

<.10

 

<.10 — .60

 

 

 

 

5

 

 

 

 

 

2019

 

 

NO

Soil runoff

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Disinfection Residuals

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sample results are from the distribution system from Wells: 1, 2, 3, 4, 5

Constituent

Average

 

 

 

Sample Range

 

 

MCL

 

 

PHG (MCLG)

 

Sample Date

Major Sources in Drinking Water

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chlorine (mg/L)

 

.53

 

 

 

.20 — 1.11

 

 

4

 

 

 

 

 

4

 

 

WEEKLY

Drinking water disinfectant added for treatment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unregulated Contaminants

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wells: 1, 2, 3, 4, 5

Contaminants

Average

 

Sample Range

 

 

 

MCL

 

PHG (MCLG)

NL

 

Sample Date

 

 

Major Sources in Drinking Water

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Vanadium (mg/L)

<3.0

 

<3.0 — 3.2

 

 

NONE

 

 

NONE

50

 

 

 

2019

 

 

Naturally occurring "rare earth" element found in the earth's crust

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Constituents That May Be of Interest to Consumers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wells: 1, 2, 3, 4, 5

Constituents

 

 

Average

 

 

Range

 

 

Sample Date

 

 

 

 

Notes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bicarbonate (mg/L)

 

86

 

 

 

 

 

81 —

89

 

 

 

 

2019

 

 

No PHG or MCLs available

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Calcium (mg/L)

 

27

 

 

 

 

 

24 —

30

 

 

 

 

2019

 

 

No PHG or MCLs available

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Magnesium (mg/L)

 

4.2

 

 

 

 

3.5 —

4.9

 

 

 

2019

 

 

No PHG or MCLs available

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pH

 

7.5

 

 

 

 

7.4 —

7.7

 

 

 

2019

 

 

No PHG or MCLs available

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Potassium (mg/L)

 

1.5

 

 

 

 

1.3 —

1.6

 

 

 

2019

 

 

No PHG or MCLs available

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sodium (mg/L)

 

15

 

 

 

 

 

14 —

16

 

 

 

 

2019

 

 

No PHG or MCLs available

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total Alkalinity, CaCO3 (mg/L)

 

70

 

 

 

 

 

67 —

73

 

 

 

 

2019

 

 

No PHG or MCLs available

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total Hardness, CaCO3 (mg/L)

 

86

 

 

 

 

 

73 —

96

 

 

 

 

2019

 

 

No PHG or MCLs available

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Aggressive Index

 

11.21

 

 

11.09 —

11.34

 

 

2019

 

 

No PHG or MCLs available

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contaminants


Hesperia Water District

EWG's drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group by the California State Water Resources Control Board, 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: 91627
  • Data available: 2012-2017
  • Data Source: Groundwater
  • Total: 14

Contaminants That Exceed Guidelines

  • Arsenic
  • Chromium (hexavalent)
  • Nitrate
  • Nitrate and nitrite
  • Total trihalomethanes (TTHMs)

Other Detected Contaminants

  • 1%2C4-Dioxane
  • Chlorate
  • Chloroform
  • Chromium (total)
  • Fluoride
  • Molybdenum
  • 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

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