Indian Hills Water District

2014 Drinking Water Consumer Confidence Reportfor Calendar Year 2013

Public Water System ID # CO0130065

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 We are pleased to present to you this year’s water quality report. Our constant goal is to provide you with a safe and dependable supply of drinking water.

General Information About Drinking Water

All 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 the 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 of 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 1-800-426-4791or by visiting http://water.epa.gov/drink/contaminants.

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 of 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).

 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. Contaminants that may be present in source water include:

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

  • Inorganic contaminantssuch 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 herbicidesthat may come from a variety of sources, such as agriculture, urban storm water runoff, and residential uses.

  • Organic chemical contaminantsincluding synthetic and volatile organic chemicals, which are byproducts of industrial processes and petroleum production, and also may come from gas stations, urban storm water runoff, and septic systems.

  • Radioactive contaminantsthat can be naturally occurring or be the result of oil and gas production and miniing activities.

  • Organic chemical contaminants: including synthetic and volatile organic chemicals, which are byproducts of industrial processes and petroleum production, and also may come from gas stations, urban storm water runoff, and septic systems.

 In order to ensure that tap water is safe to drink, the Colorado Department of Public Health and Environment prescribes regulations limiting the amount of certain contaminants in water provided by public water systems. The Food and Drug Administration regulations establish limits for contaminants in bottled water that must provide the same protection for public health.

Lead in Drinking Water
If present, elevated levels of lead can cause serious health problems (especially for pregnant women and young children). It is possible that lead levels at your home may be higher than other homes in the community as a result of materials used in your home’s plumbing. If you are concerned about lead in your water, you may wish to have your water tested. 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. Additional information on lead in drinking water, testing methods, and steps you can take to minimize exposure is available from the Safe Drinking Water Hotline (1-800-426-4791) or at http://www.epa.gov/safewater/lead.

Source Water Assessment and Protection (SWAP)
The Colorado Department of Public Health and Environment has provided us with a Source Water Assessment Report for our water supply. For general information or to obtain a copy of the report please visit http://wqcdcompliance.com/ccr. The report is located under “Source Water Assessment Reports”, and then “Assessment Report by County”. Select JEFFERSON County and find 130065; INDIAN HILLS WD or by contacting JOHN HIGHET at 720-530-6959. The Source Water Assessment Report provides a screening-level evaluation of potential contamination that could occur. It does not mean that the contamination has or will occur. We can use this information to evaluate the need to improve our current water treatment capabilities and prepare for future contamination threats. This can help us ensure that quality finished water is delivered to your homes. In addition, the source water assessment results provide a starting point for developing a source water protection plan. Potential sources of contamination in our source water area are listed on the next page.

Please contact us to learn more about what you can do to help protect your drinking water sources, any questions about the Drinking Water Consumer Confidence Report, to learn more about our system, or to attend scheduled public meetings. We want you, our valued customers, to be informed about the services we provide and the quality water we deliver to you every day.

Our Water Source(s)

);"> Source

Source Type

Water Type

Potential Sources of Contamination

Turkey Creek Well #11

WL

GW

Discharge from petroleum refineries; metal refineries.  Discharge from mines.

Turkey Creek Well Gallery

WL

GU

Same as above.

Parmalee Gulch Well

#5

WL

GW

Same as above.

Parmalee Gulch Well #10

WL

GW

Runoff from fertilizer use, leaching from septic tanks. Erosion from natural deposits

Parmalee Gulch Well #1

WL

GU

Discharge from petroleum refineries; metal refineries.  Discharge from mines.

                                     

                                                        Terms and Abbreviations

 
  • Maximum Contaminant Level (MCL)  The highest level of a contaminant allowed in drinking water.
  • 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 and other regulatory requirements.
  • 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.
  • 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.
  • Maximum Residual Disinfectant Level Goal (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.
  • Violation (No Abbreviation)  Failure to meet a Colorado Primary Drinking Water Regulation
  •  Formal Enforcement Action (No Abbreviation)  Escalated action taken by the State (due to the risk to public health, or number or severity of violations) to bring a non-compliant water system back into compliance.
  • Variance and Exemptions (V/E)  Department permission not to meet a MCL or treatment technique under certain conditions.
  • Gross Alpha (No Abbreviation)  Gross alpha particle activity compliance value. It includes radium-226, but excludes radon 222, and uranium.
  • Picocuries per liter (pCi/L)  Measure of the radioactivity in water.
  • Nephelometric Turbidity Unit (NTU)  Measure of the clarity or cloudiness of water. Turbidity in excess of 5 NTU is just noticeable to the typical person.
  •  Compliance Value (No Abbreviation) – Single or calculated value used to determine if regulatory contaminant level (e.g. MCL) is met. Examples of calculated values are the 90th Percentile, Running Annual Average (RAA) and Locational Running Annual Average (LRAA).
  •  Average (x-bar)  Typical value.
  •  Range (R)  Lowest value to the highest value.
  •  Sample Size (n)  Number or count of values (i.e. number of water samples collected).
  •  Parts per million = Milligrams per liter (ppm = mg/L)  One part per million corresponds to one minute in two years or a single penny in $10,000.
  •  Parts per billion = Micrograms per liter (ppb = ug/L)  One part per billion corresponds to one minute in 2,000 years, or a single penny in $10,000,000.
  •  Parts per trillion = Nanograms per liter (ppt = ng/L)  One part per trillion corresponds to one minute in 2,000,000 years, or a single penny in $10,000,000,000.
  •  Parts per quadrillion = Picograms per liter (ppq = pg/L)  One part per quadrillion corresponds to one minute in 2,000,000,000 years or one penny in $10,000,000,000,000.
  •  Not Applicable (N/A) – Does not apply or not available

Detected Contaminants

Indian Hills WD routinely monitors for contaminants in your drinking water according to Federal and State laws. The following table(s) show all detections found in the period of January 1 to December 31, 2011 unless otherwise noted. The State of Colorado requires us to monitor for certain contaminants less than once per year because the concentrations of these contaminants are not expected to vary significantly from year to year, or the system is not considered vulnerable to this type of contamination. Therefore, some of our data, though representative, may be more than one year old. The “Range” column in the table(s) below will show a single value for those contaminants that were sampled only once. Violations, if any, are reported in the next section of this report.

Note: Only detected contaminants appear in this report. If no tables appear in this section, that means that Indian Hills WD did not detect any contaminants in the last round of monitoring.

Collection Date

Highest Value

Range

Unit

MCL

MCLG

Typical Source

Synthetic Organic Contaminants sampled at entry point to Distribution
2012

0.41

0.0-0.82

ppb

6

0

Discharge from chemical factories

 Organics and Inorganics

             

BARIUM

2013

0.2

0.14 - 0.25

ppm

2

2

Discharge of drilling wastes; Discharge from metal refineries; Erosion of natural deposits.

FLUORIDE

2013

0.7

0.3 - 1.1

ppm

4

4

Erosion of natural deposits; Water additive which promotes strong teeth;

NITRATE

2013

6.11

0.17 – 8.5

ppm

10

10

Runoff from fertilizer use; Leaching from septic tanks, sewage; Erosion of natural deposits.

SELENIUM

2013

0.65

0 to 1.3

ppb

50

50

Discharge from petroleum, metal refineries, mines, natural deposits.

);"> Disinfection By-Products

Date

Average

Range

Units

MCL

MCLLG

MCL Violations

Typical Source

TOTAL HALOACETIC ACIDS (HAA5)

2013

26.61

2.6 – 78.3

ppb

60

n/a

No

By-product of drinking water disinfection

TOTAL TRIHALOMETHANES (TTHM)

2013

33.58

9.5 - 68.7

ppb

80

n/a

No

By-product of drinking water chlorination

Lead and Copper

tIME pERIOD

90TH Percentile

Unit

90TH PERCENTILE

AL

Typical Source

COPPER

8/22/2012 TO

8/22/2013

0.61

ppm

1.3

Corrosion of household plumbing systems, Erosion of natural deposits,  Leaching from wood preservatives

LEAD

8/22/2012 TO

8/22/2013

4.0

ppb

15

Corrosion of household plumbing systems and/or erosion of natural deposits.

Radionuclides

Collection Date

Highest Value

Range

Unit

MCL

Combined RADIUM

2012

.30

0.3-0.3

pCi/L

5

Combined URANIUM

2012

3.4

3.4 - 3.4

ppb

30

Gross ALPHA 

2012

1.2

1.2 - 1.2

pCi/L

15

GROSS BETA activity

2010

2.45

1.4-3.50

pCi/L

50

 

Turbidity (sampled at entry point to Distribution System)

Level Found                             TT Requirement                      Sample Date           TT Violation          Likely Source of Contamination

Highest Single                       Maximum 1.0 NTU for                 August 2012                NO                            Soil Run Off
Masurement: 0.14 NTU          single measurement                    
                                               In any month, at least 95%                  Lowest monthly percentage of samples meeting                                                                                               of samples must be less                      TT requirement for our technology: 100%                                                                                                           than 0.3 NTU.
 
 
Secondary Contaminants/ Other Monitoring  
                                                                        Collection Date        Highest Value           Range         Unit        Secondary Standard      
    Total Disolved Solids                                            2012                       70                       70-70           ppm                 500

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

Violation, significant Deficiencies and Formal Enforcement Actions

No Violation, Deficiencies or Formal Enforcement Actions for IHWD