Consumer Water Quality Report for 2024- I-40 Industrial Corridor

Consumer Confidence Report for Calendar Year 2024

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Public Water System ID Number	Public Water System Name
AZ04-08-154	I40 Industrial DWID
Contact Name and Title		Phone Number	E-mail Address
April Van Buren, Water Operator Sr		928-727-5294	MCWater@mohave.gov
We want our valued customers to be informed about their water quality. If you would like to learn more about public participation or to attend any of our regularly scheduled meetings, please contact April Van Buren at 928-727-5294 for additional opportunity and meeting dates and times. You may also visit our website at www.Mohave.gov.

This is our annual report about your drinking water quality, also called a Consumer Confidence Report or CCR. Having clean, safe water is one of the most important services we provide, and we want you to be as informed as possible about your drinking water.

This report provides you with information about where you water comes from, results of sampling that we have performed, and any issues or violations that happened over the previous year. This water quality report includes a table with the most recent water testing results within the last 5 years. The table shows if different germs and chemicals were in a safe range and met EPA's health standards. Look for the column in the table called "TT or MCL violation," to see if your utility found unsafe levels of any germs or chemicals.

You may also find real-time information about our water system at the Arizona Department of Environmental Quality (ADEQ) Drinking Water Watch website at https://azsdwis.azdeq.gov/DWW_EXT/

Drinking Water Sources

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, radioactive material, and can pick up substances resulting from the presence of animals or from human activity.
Our water source(s):	Groundwater from Sacramento Valley Basin drawn by seven (7) deep wells

Source Water Assessment

Making the water safe to drink starts by protecting the place it comes from. We work with state scientists at the Arizona

Department of Environmental Quality (ADEQ) to examine water at its source to look for possible pollutants. This is called a Source Water Assessment (SWA). This water system did not receive a SWA because the system was either inactive at the time or the system did not exist.

Drinking Water Contaminants

Contaminants are any physical, chemical, biological, or radiological substance or matter in water. Contaminants that may be present in source water include:

Microbial Contaminants: such as viruses and bacteria, which may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife. Organic Chemical Contaminants: including synthetic and

volatile organic chemicals, which are by-products of industrial

Inorganic Contaminants: such as salts and metals, processes and petroleum production, and can also come which can occur naturally in the soil or groundwater or from gas stations, urban stormwater runoff, and septic may result from urban stormwater runoff, industrial or systems.

domestic wastewater discharges, oil and gas production,

mining, or farming. Radioactive Contaminants: which can be naturally occurring or be the result of oil and gas production and

Pesticides and herbicides: which may come from a mining activities.

variety of sources such as agriculture, urban stormwater runoff, and residential uses.

Vulnerable Population

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. In order to ensure that tap water is safe to drink, the Environmental Protection Agency (EPA) prescribes regulations which limit the amount of certain contaminants in water provided by public water systems. The Food and Drug Administration (FDA) regulations establish limits for contaminants in bottled water which must provide the same protection for public health.

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.

More information about contaminants, their potential health effects, and the appropriate means to lessen the risk can be obtained by calling the Environmental Protection Agency's Safe Drinking Water Hotline at 800-426-4791 or visiting the website https://epa.gov/safewater

Definitions

Maximum Contaminant Level (MCL): 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.

Maximum Contaminant Level Goal (MCLG): 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.

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

Action Level (AL): The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow.

Maximum residual disinfectant level goal or MRDLG: 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 contaminants.

Maximum Residual Disinfectant Level (MRDL): The

highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.

Level 1 Assessment: A study of the water system to identify potential problems and determine (if possible) why total coliform bacteria have been found in our water system.

Level 2 Assessment: A very detailed study of the water system to identify potential problems and determine (if possible) why an E. coli MCL violation has occurred and/or why total coliform bacteria have been found in our water system on multiple occasions.

Lead Informational Statement

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.

I40 Industrial DWID is responsible for providing high quality drinking water and removing lead pipes, but cannot control the variety of materials used in plumbing components in your home. You share the responsibility for protecting yourself and your family from the lead in your home plumbing. You can take responsibility by identifying and removing lead materials within your home plumbing and taking steps to reduce your family's risk.

Before drinking tap water, flush your pipes for several minutes by running your tap, taking a shower, doing laundry or a load of dishes. You can also use a filter certified by an American National Standards Institute accredited certifier to reduce lead in drinking water.

To address lead in drinking water, public water systems were required to develop and maintain an inventory of service line materials by Oct 16, 2024. Developing an inventory and identifying the location of lead service lines (LSL) is the first step for beginning LSL replacement and protecting public health. The lead service inventory may be viewed at the Mohave County Improvement Districts office, located at 3715 Sunshine Drive in Kingman Arizona, or by calling the office at 928757-0914. Please contact us if you would like more information about the inventory or any lead sampling that has been done.

If you are concerned about lead in your water and wish to have your water tested, contact I40 Industrial DWID at 928-7570914. Information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available at http://www.epa.gov/safewater/lead .

Water Quality Data – Regulated Contaminants

The following are terms related to water quality data presented in this table: Not Applicable (NA): Sampling was not completed because it was not required by regulation. Not Detected (ND or <): Not detectable at reporting limit. ppm: Parts per million or Milligrams per liter (mg/L), equal to 1/1000 of a gram. Minimum Reporting Limit (MRL): The smallest concentration of a substance that can be reliably measured by a given analytical method. ppb: Parts per billion or Micrograms per liter (µg/L), equal to 1000 ppm. Millirems per year (MREM): A measure of radiation absorbed by the body. ppt: Parts per trillion or Nanograms per liter (ng/L), equal to 1000 ppb. Nephelometric Turbidity Units (NTU): Measure of water clarity. ppq: Parts per quadrillion or Picograms per liter (pg/L), equal to 1000 ppt. Million fibers per liter (MFL): Measure of asbestos fibers. Picocuries per liter (pCi/L): Measure of the radioactivity in water.
Microbiological (RTCR)	TT Violation Y or N	Number of Positive Samples	Positive Sample(s) Month & Year	MCL	MCLG	Likely Source of Contamination
E. Coli	N	0	N/A	0	0	Human and animal fecal waste
Lead & Copper	MCL Violation Y or N	90th Percentile	Number of Samples Exceeding AL	AL	ALG	Sample Month & Year	Likely Source of Contamination
Copper (ppm)	N	.033	0	1.3	1.3	08/2023	Corrosion of household plumbing systems; erosion of natural deposits
Lead (ppb)	N	1.4	0	15	0	08/2023	Corrosion of household plumbing systems; erosion of natural deposits
Radionuclides	MCL Violation Y or N	Running Annual Average (RAA) OR Highest Level Detected	Range of All Samples (Low-High)	MCL	MCLG	Sample Month & Year	Likely Source of Contamination
Combined Radium-226 & -228 (pCi/L)	N	0	0	5	0	04/2011	Erosion of natural deposits
Inorganic Chemicals (IOC)	MCL Violation Y or N	Running Annual Average (RAA) OR Highest Level Detected	Range of All Samples (Low-High)	MCL	MCLG	Sample Month & Year	Likely Source of Contamination
Arsenic1 (ppb)	N	8	8	10	0	05/2023	Erosion of natural deposits, runoff from orchards, runoff from glass and electronics production wastes
Barium (ppm)	N	.005	.005	2	2	05/2023	Discharge of drilling wastes; discharge from metal refineries; Erosion of natural deposits
Chromium (ppb)	N	41	41	100	100	05/2023	Discharge from steel and pulp mills; Erosion of natural deposits
Fluoride (ppm)	N	1.1	1.1	4	4	05/2023	Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories
Nitrate2 (ppm)	N	3	3	10	10	02/2024	Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Sodium (ppm)	N	60	60	N/A	N/A	05/2023	Erosion of natural deposits
1 Arsenic is a mineral known to cause cancer in humans at high concentration and is linked to other health effects, such as skin damage and circulatory problems. While your drinking water meets EPA's standard for arsenic, it does contain low levels of arsenic. EPA's standard balances the current understanding of arsenic's possible health effects against the costs of removing arsenic from drinking water. EPA 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. 2 Nitrate in drinking water at levels above 10 ppm is a health risk for infants of less than six months of age. High nitrate levels in drinking water can cause “blue baby syndrome.” Nitrate levels may rise quickly for short periods of time because of rainfall or agricultural activity. If you are caring for an infant, and detected nitrate levels are above 5 ppm, you should ask advice from your health care provider.

All contaminants listed below were tested for and were NOT found in our water. These contaminants are considered NonDetect or not present:

Synthetic Organic Compounds (Last tested 05/2023): 2,4-D, 2,4,5-TP (a.k.a. Silvex), Acrylamide, Alachlor, Atrazine,

Benzo (a) pyrene (PAH), Carbofuran, Chlordane, Dalapon, Di (2-ethylhexyl) adipate, Di (2-ethylhexyl) phthalate, Dibromochloropropane, Dinoseb, Diquat, Dioxin [a.k.a. 2,3,7,8-TCDD], Endothall, Endrin, Epichlorohydrin, Ethylene dibromide, Glyphosate, Heptachlor, Heptachlor epoxide, Hexachlorobenzene, Hexachlorocyclo pentadiene, Lindane, Methoxychlor, Oxamyl (a.k.a. Vydate), PCBs (Polychlorinated biphenyls), Pentachlorophenol, Picloram, Simazine, Toxaphene

Volatile Organic Compounds (Last tested 05/2023): Benzene, Carbon tetrachloride, Chlorobenzene, o-

Dichlorobenzene, p-Dichlorobenzene, 1,2-Dichloroethane, 1,1-Dichloroethylene, cis-1,2 Dichloroethylene, trans-1,2-

Dichloroethylene, Dichloromethane, 1,2-Dichloropropane, Ethylbenzene, Styrene, Tetrachloroethylene, 1,2,4Trichlorobenzene, 1,1,1-Trichloroethane, 1,1,2-Trichloroethane, Trichloroethylene, Toluene, Vinyl Chloride, Xylenes

Inorganic Chemicals (Last tested 05/2023): Antimony, Asbestos, Beryllium, Cadmium, Cyanide, Mercury, Nitrite (last tested 02/2024), Selenium, Thallium

Water Quality Table – Unregulated Contaminants

Your drinking water was sampled between February and August of 2024 for the presence and concentration of 29 different per- and polyfluoroalkyl substances, some known by the acronyms PFAS, PFOA, PFNA, PFHxS, PFBS, and GenX, a group of contaminants in the final stages of becoming regulated by the EPA. PFAS are man-made chemicals that are resistant to heat, water, and oil. They have been used since the 1940s to manufacture various consumer products, including fire-fighting foam and stain resistant, water-resistant, and nonstick items. Many PFAS do not break down easily and can build up in people, animals, and the environment over time. Scientific studies have shown that exposure to certain PFAS can be harmful to people and animals, depending on the level and duration of exposure.

To learn more about this group of chemicals, we encourage you to visit the ADEQ website at https://www.azdeq.gov/pfas resources . You may also read the ADEQ-provided “PFAS 101 Fact Sheet” or view ADEQ’s Introduction to PFAS video on YouTube at https://www.youtube.com/watch?v=t44kSh0uKXE

Per- and Polyfluoroalkyl Substances	Highest Level Detected	Range of All Samples	Proposed MCL
PFOA (in parts per trillion)	0	0	4.0 ppt
PFOS (in parts per trillion)	0	0	4.0 ppt
PFNA (in parts per trillion)	0	0	10 ppt
PFHxS (in parts per trillion)	0	0	10 ppt
PFBS (in parts per trillion)	0	0	N/A*
GenX (in parts per trillion)	0	0	10 ppt
Calculated Hazard Index (HI)	0		1 (no units)

* Hazard Index or HI: The Hazard Index is an approach that determines the health concerns associated with mixtures of certain PFAS in finished drinking water. Low levels of multiple PFAS that individually would not likely result in adverse health effects may pose health concerns when combined in a mixture. The Hazard Index MCL represents the maximum level for mixtures of PFHxS, PFNA, HFPO-DA, and/or PFBS allowed in water delivered by a public water system. A Hazard Index greater than 1 requires a system to take action.

Violation Summary

Violation Type	Explanation, Health Effects	Time Period	Corrective Actions
NONE

Please share this information with other people who drink this water, especially those who may not have received this notice directly (for example, people in apartments, nursing homes, schools, and businesses). You can do this by posting this notice in a public place or distributing copies by hand or mail.

Unresolved significant deficiencies identified by ADEQ

Date identified	Description	Status
NONE

Fecal indicators are microbes whose presence indicates that the water may be contaminated with human or animal wastes. Microbes in these wastes can cause short-term health effects, such as diarrhea, cramps, nausea, headaches, or other symptoms. They may pose a special health risk for infants, young children, some of the elderly, and people with severely compromised immune systems.

For more information about these reports and what is required in them, visit EPA’s website at: https://www.epa.gov/ccr/ccr -information -consumers