Why, Arizona Water Quality

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Consumer Confidence Report
For Calendar Year 2016

Este informe contiene informactión muy importante sobre el aqua usted bebe. Tradúscalo ó hable con alguien que lo entienda bien.

I. Public Water System (PWS) Information

PWS ID Number PWS Name
AZ04 -10-118 Why Domestic Water Improvement District
Contact Person and Title Phone Number E-Mail Address
George Gray, Accountant (502) 387- 5460  
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  George Gray  at  530 S. Mesquite Ln.  for additional opportunity and meeting dates.

II. Drinking Water Sources

The sources of drinking water (both tap 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 pickup substances resulting from the presence of animals or from human activity.

The report must contain a brief explanation regarding contaminants which may reasonably be expected to be found in drinking water. This explanation may include the language of paragraph 40 CFR 141.153 (h)(1)(iii) shown below, or the system may use their own comparable language:

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

Our water source(s): Ground Water from Well

III. Consecutive Connection Sources

A public water system that receives some or all of its finished water from one or more wholesale systems by means of a direct connection or through the distribution system of one or more consecutive systems. Systems that purchase water from another system report regulated contaminants detected from the source water supply in a separate table.
 PWS ID # AZ04 -    ,       provides a consecutive connection source of water

IV. Drinking Water Contaminants

Microbial contaminants, such as viruses and bacteria that may come from sewage treatment plants, septic systems, agricultural livestock operations, and wildlife.

Inorganic contaminants, such as salts and metals, which can be naturally-occurring or result from urban stormwater runoff, industrial or domestic wastewater discharges, oil and gas production, mining, or farming.

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

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

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

Shortcuts to data for: Arsenic, Chlorine, Copper, Fluoride, Lead.

V. 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. Some people may be more vulnerable to contaminants 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. For more information about contaminants and potential health effects, or to receive a copy of the U.S. Environmental Protection Agency (EPA) and the U.S. Centers for Disease Control (CDC) guidelines on appropriate means to lessen the risk of infection by Cryptosporidium and microbiological contaminants call the EPA Safe Drinking Water Hotline at 1-800-426-4791.

VI. Source Water Assessment

INSTRUCTIONS: If the public water system received a Source Water Assessment (SWA), include a brief summary of the susceptibility as summarized in the SWA report. Further source water assessment documentation can be obtained by contacting ADEQ, 602-771-4641.

VII. Definitions

AL = Action Level - The concentration of a contaminant which, if exceeded, triggers treatment or other requirements.

MCL = Maximum Contaminant Level - The highest level of a contaminant that is allowed in drinking water.

MCLG = Maximum Contaminant Level Goal - The level of a contaminant in drinking water below which there is no known or expected risk to health.

MFL = Million fibers per liter.

MRDL = Maximum Residual Disinfectant Level. The level of disinfectant added for water treatment that may not be exceeded at the consumer's tap.

MRDLG = Maximum Residual Disinfectant Level Goal. The level of disinfectant added for treatment at which no known or anticipated adverse effect on health of persons would occur.

MREM = Millirems per year - a measure of radiation absorbed by the body.

NA = Not Applicable, sampling was not completed by regulation or was not required.

NTU = Nephelometric Turbidity Units, a measure of water clarity.

PCi/L = Picocuries per liter - picocuries per liter is a measure of the radioactivity in water.

PPM = Parts per million or Milligrams per liter (mg/L).

PPB = Parts per billion or Micrograms per liter (µg/L).

PPT = Parts per trillion or Nanograms per liter.

ppm x 1000 = ppb or mg/L x 1000 = ppb

ppb x 1000 = ppt

ppt x 1000 = ppq

PPQ = Parts per quadrillion or Picograms per liter.

TT = Treatment Technique - A required process intended to reduce the level of a contaminant in drinking water.

VIII. Health Effects Language

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.

If arsenic is less than or equal to the MCL, your drinking water meets EPA's standards. 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.

LEAD: 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. Ajo Improvement 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 Safe Drinking Water Hotline or at www.epa.gov/safewater/lead.

IX. Water Quality Data

Microbiological
Microbiological Violation
Y or N
Number of Samples Present OR Highest Level Detected Absent (A) or Present (P) OR Range of All Samples (L-H) MCL MCLG Sample Month & Year Likely Source of Contamination
Total Coliform Bacteria
(System takes = 40 monthly samples)
5% of monthly samples are positive;
(System takes = 40 monthly samples)
1 positive monthly sample
N   A 0 0  monthly
2016
Naturally Present in Environment
Fecal coliform and E. Coli
(TC Rule)
      0 0 Human and animal fecal waste
Fecal Indicators (E. coli, enterococci or coliphage)
(GW Rule)
      TT n/a Human and animal fecal waste
Total Organic Carbon (ppm)       TT n/a Naturally present in the environment
Turbidity (NTU), surface water only       TT n/a Soil Runoff
Disinfectants
Disinfectants Violation
Y or N
Running Annual Average (RAA) Range of All Samples (L-H) MCL MCLG Sample Month & Year Likely Source of Contamination
Chloramines (ppm)       MRDL = 4 MRDLG = 4 Water additive used to control microbes
Chlorine (ppm) N 0.858   MRDL = 4 MRDLG = 4 monthly
Monthly 2016
Water additive used to control microbes
Chloride dioxide (ppb)       MRDL = 800 MRDLG = 800 Water additive used to control microbes
Disinfection By-Products
Disinfection By-Products Violation
Y or N
Running Annual Average (RAA) OR Highest Level Detected Range of All Samples (L-H) MCL MCLG Sample Month & Year Likely Source of Contamination
Haloacetic Acids (ppb) (HAA5) N 3.4(1)   60 n/a 8/2016 Byproduct of drinking water disinfection
Total Trihalomethanes (ppb) (TTHM) N 17.8(2)   80 n/a 8/2016 Byproduct of drinking water disinfection
Bromate (ppb)       10 0   Byproduct of drinking water disinfection
Chlorite (ppm)       1 0.8   Byproduct of drinking water disinfection
Lead & Copper
Lead & Copper Violation
Y or N
90th Percentile AND Number of Samples Over the AL Range of All Samples (L-H) AL ALG Sample Month & Year Likely Source of Contamination
Copper (ppm) N 90th Percentile = 0.11 AL = 1.3 ALG = 1.3 8/2014 Corrosion of household plumbing systems; erosion of natural deposits
Lead (ppb) N 90th Percentile = 2.5(3) AL = 15 0  8/2014 Corrosion of household plumbing systems; erosion of natural deposits
Radionuclides
Radionuclides Violation
Y or N
Running Annual Average (RAA) OR Highest Level Detected Range of All Samples (L-H) MCL MCLG Sample Month & Year Likely Source of Contamination
Beta / photon emitters (mrem/yr.)       4 0   Decay of natural and man-made deposits
Alpha emitters (pCi/L)(this is Gross Alpha 4002) N 1.8   15 0 12/2014 Erosion of natural deposits
Combined Radium 226 & 228 (pCi/L)       5 0   Erosion of natural deposits
Uranium (ug/L)       30 0   Erosion of natural deposits
Inorganic Chemicals (IOC)
Inorganic Chemicals (IOC) Violation
Y or N
Running Annual Average (RAA) OR Highest Level Detected Range of All Samples (L-H) MCL MCLG Sample Month & Year Likely Source of Contamination
Antimony (ppb)       6 6   Discharge from petroleum refineries; fire retardants; ceramics, electronics and solder
Arsenic (ppb) Y 14(4) 2.3-
10.4
10 0 Qtrly
2016
Erosion of natural deposits, runoff from orchards, runoff from glass and electronics production wastes
Asbestos (MFL)       7 7   Decay of asbestos cement water mains; Erosion of natural deposits
Barium (ppm) N 0.0022 2 2 12/2014 Discharge of drilling wastes; discharge from metal refineries; Erosion of natural deposits
Beryllium (ppb)       4 4   Discharge from metal refineries and coal-burning factories; discharge from electrical, aerospace, and defense industries
Cadmium (ppb)       5 5   Corrosion of galvanized pipes; natural deposits; metal refineries; runoff from waste batteries and paints
Chromium (ppb) N 9.1(3)   100 100 12/2014 Discharge from steel and pulp mills; Erosion of natural deposits
Cyanide (ppb)       200 200   Discharge from steel/metal factories; Discharge from plastic and fertilizer factories
Fluoride (ppm) N 2.3   4 4 12/2014 Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum
Mercury (ppb)       2 2   Erosion of natural deposits; Discharge from refineries and factories; Runoff from landfills and cropland.
Nitrate (ppm) N 3.8 10 10 11/2016 Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Nitrite (ppm)       1 1   Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits
Selenium (ppb)       50 50   Discharge from petroleum and metal refineries; erosion of natural deposits; discharge from mines
Sodium (ppm) N 160   N/A N/A 12/2014 N/A
Thallium (ppb)       2 0.5   Leaching from ore-processing sites; discharge from electronics, glass, and drug factories
Synthetic Organic Chemicals (SOC)
Synthetic Organic Chemicals (SOC) Violation
Y or N
Running Annual Average (RAA) OR Highest Level Detected Range of All Samples (L-H) MCL MCLG Sample Month & Year Likely Source of Contamination
2,4-D (ppb)       70 70 12/2016 Runoff from herbicide used on row crops
2,4,5-TP (a.k.a. Silvex) (ppb)       50 50 12/2016 Residue of banned herbicide
Acrylamide       TT 0   Added to water during sewage / wastewater treatment
Alachlor (ppb) N     2 0 12/2016 Runoff from herbicide used on row crops
Atrazine (ppb) N     3 3 12/2016 Runoff from herbicide used on row crops
Benzo (a) pyrene (PAH) (ppt) N     200 0 12/2016 Leaching from linings of water storage tanks and distribution lines
Carbofuran (ppb) N     40 40 12/2016 Leaching of soil fumigant used on rice and alfalfa
Chlordane (ppb) N     2 0 12/2016 Residue of banned termiticide
Dalapon (ppb) N     200 200 12/2016 Runoff from herbicide used on rights of way
Di (2-ethylhexyl) adipate (ppb) N     400 400 12/2016 Discharge from chemical factories
Di (2-ethylhexyl) phthalate (ppb) N     6 0 12/2016 Discharge from rubber and chemical factories
Dibromochloropropane (ppt) N     200 0 12/2016 Runoff/leaching from soil fumigant used on soybeans, cotton, pineapples, and orchards
Dinoseb (ppb) N     7 7 12/2016 Runoff from herbicide used on soybeans and vegetables
Diquat (ppb) N     20 20 12/2016 Runoff from herbicide use
Dioxin [a.k.a. 2,3,7,8-TCDD] (ppq) N     30 0 12/2016 Emissions from waste incineration and other combustion; discharge from chemical factories
Endothall (ppb) N     100 100 12/2016 Runoff from herbicide use
Endrin (ppb) N     2 2 12/2016 Residue of banned insecticide
Epichlorohydrin       TT 0   Discharge from industrial chemical factories; an impurity of some water treatment chemicals
Ethylene dibromide (ppt) N     50 0 12/2016 Discharge from petroleum refineries
Glyphosate (ppb) N     700 700 12/2016 Runoff from herbicide use
Heptachlor (ppt) N     400 0 12/2016 Residue of banned termiticide
Heptachlor epoxide (ppt) N     200 0 12/2016 Breakdown of heptachlor
Hexachlorobenzene (ppb) N     1 0 12/2016 Discharge from metal refineries and agricultural chemical factories
Hexachlorocyclo pentadiene (ppb) N     50 50 12/2016 Discharge from chemical factories
Lindane (ppt) N     200 200 12/2016 Runoff/leaching from insecticide used on cattle, lumber, gardens
Methoxychlor (ppb) N     40 40 12/2016 Runoff/leaching from insecticide used on fruits, vegetables, alfalfa,
Oxamyl (a.k.a. Vydate) (ppb) N     200 200 12/2016 Runoff/leaching from insecticide used on apples, potatoes and tomatoes
PCBs [Polychlorinated biphenyls] (ppt)       500 0   Runoff from landfills; discharge of waste chemicals
Pentachlorophenol (ppb) N     1 0 12/2016 Discharge from wood preserving factories
Picloram (ppb) N     500 500 12/2016 Herbicide runoff
Simazine (ppb) N     4 4 12/2016 Herbicide runoff
Toxaphene (ppb) N     3 0 12/2016 Runoff/leaching from insecticide used on cotton and cattle
Volatile Organic Chemicals (VOC)
Volatile Organic Chemicals (VOC) Violation
Y or N
Running Annual Average (RAA) OR Highest Level Detected Range of All Samples (L-H) MCL MCLG Sample Month & Year Likely Source of Contamination
Benzene (ppb) N     5 0 12/2016 Discharge from factories; leaching from gas storage tanks and landfills
Carbon tetrachloride (ppb) N     5 0 12/2016 Discharge from chemical plants and other industrial activities
Chlorobenzene (ppb) N     100 100 12/2016 Discharge from chemical and agricultural chemical factories
o-Dichlorobenzene (ppb) N     600 600 12/2016 Discharge from industrial chemical factories
p-Dichlorobenzene (ppb) N     75 75 12/2016 Discharge from industrial chemical factories
1,2-Dichloroethane (ppb) N     5 0 12/2016 Discharge from industrial chemical factories
1,1-Dichloroethylene (ppb) N     7 7 12/2016 Discharge from industrial chemical factories
cis-1,2-Dichloroethylene (ppb) N     70 70 12/2016 Discharge from industrial chemical factories
trans-1,2-Dichloroethylene (ppb) N     100 100 12/2016 Discharge from industrial chemical factories
Dichloromethane (ppb) N     5 0 12/2016 Discharge from pharmaceutical and chemical factories
1,2-Dichloropropane (ppb) N     5 0 12/2016 Discharge from industrial chemical factories
Ethylbenzene (ppb) N     700 700 12/2016 Discharge from petroleum refineries
Styrene (ppb) N     100 100 12/2016 Discharge from rubber and plastic factories; leaching from landfills
Tetrachloroethylene (ppb) N     5 0 12/2016 Discharge from factories and dry cleaners
1,2,4-Trichlorobenzene (ppb) N     70 70 12/2016 Discharge from textile-finishing factories
1,1,1-Trichloroethane (ppb) N     200 200 12/2016 Discharge from metal degreasing sites and other factories
1,1,2-Trichloroethane (ppb) N     5 3 12/2016 Discharge from industrial chemical factories
Trichloroethylene (ppb) N     5 0 12/2016 Discharge from metal degreasing sites and other factories
Toluene (ppm) N     1 1 12/2016 Discharge from petroleum factories
Vinyl Chloride (ppb) N     2 0 12/2016 Leaching from PVC piping; discharge from chemical factories
Xylenes (ppm) N     10 10 12/2016 Discharge from petroleum or chemical factories

X. Cryptosporidium Monitoring (Applies to Surface water systems only)

We detected Cryptosporidium in the finished water or source water. We detected Cryptosporidium in
 n/a  of our  n/a  samples tested.

We have to provide additional treatment if Cryptosporidium is found at greater than 0.075 oocyst per liter.

We believe it is important for you to know that Cryptosporidium may cause serious illness in 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. These people should seek advice from their health care providers.

XI. Violations

Type / Description Compliance Period Corrective Actions taken by PWS
Arsenic MCL Jan. & July 2016 Change in Filtration Media
     
     
     
     

An explanation of the violation(s) in the above table, the steps taken to resolve the violation(s) and any required health effects information are required to be included with this report. (Attach copy of Public Notice if available.)

Footnotes:
(1) Haloacetic Acids: WDWID reports 0.0034 ppb; corrected value is 3.4 ppb
(2) Total Trihalomethanes: WDWID reports 0.0178 ppb; corrected value is 17.8 ppb
(3) Lead: WDWID reports 0.0025 ppb; corrected value is 2.5 ppb
(4) Arsenic: WDWID reports 0.014 ppb; corrected value is 14 ppb

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