BLANCA TOWN OF 2017 Drinking Water Quality Report
For Calendar Year 2016


Public Water System ID: CO0112100
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We are pleased to present to you this year&rsquos water quality report. Our constant goal is to provide you with a safe and dependable supply of drinking water. Please contact MYRRL SMITH at 719-379-3461 with any questions or for public participation opportunities that may affect water quality.

General Information

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. More information about contaminants and potential health effects can be obtained by calling the Environmental Protection Agency&rsquos Safe Drinking Water Hotline (1-800-426-4791) or 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:

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&rsquos 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 &ldquoSource Water Assessment Reports&rdquo, and then &ldquoAssessment Report by County&rdquo. Select COSTILLA County and find 112100; BLANCA TOWN OF or by contacting MYRRL SMITH at 719-379-3461. 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 Quality 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 Sources

Source

Source Type

Water Type

Potential Source(s) of Contamination

WELL NO 1

Well

Groundwater

Land uses: Commercial, Industrial, Transportation, low intensity residential and evergreen forests and Other: Road miles


Terms and Abbreviations

Detected Contaminants

BLANCA TOWN OF 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, 2016 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. Violations and Formal Enforcement Actions, if any, are reported in the next section of this report.

Note:
Only detected contaminants sampled within the last 5 years appear in this report. If no tables appear in this section then no contaminants were detected in the last round of monitoring.

Disinfectants Sampled in the Distribution System
TT Requirement: At least 95% of samples per period (month or quarter) must be at least 0.2 ppm OR
If sample size is less than 40 no more than 1 sample is below 0.2 ppm
Typical Sources: Water additive used to control microbes

Contaminant Name

Time Period

Results

Number of Samples Below Level

Sample Size

TT Violation

MRDL

Chlorine

December, 2016

Lowest period percentage of samples meeting TT requirement: 100%

0

1

No

4.0 ppm

 

Lead and Copper Sampled in the Distribution System

Contaminant Name

Time Period

90th Percentile

Sample Size

Unit of Measure

90th Percentile AL

Sample Sites Above AL

90th Percentile AL Exceedance

Typical Sources

Copper

07/01/2014 to 07/01/2014

0.09

5

ppm

1.3


No

Corrosion of household plumbing systems; Erosion of natural deposits

 

Radionuclides Sampled at the Entry Point to the Distribution System

Contaminant Name

Year

Average

Range
Low &ndash High

Sample Size

Unit of Measure

MCL

MCLG

MCL Violation

Typical Sources

Gross Alpha

2013

3

3 to 3

1

pCi/L

15

0

No

Erosion of natural deposits

Combined Uranium

2013

5.5

5.5 to 5.5

1

ppb

30

0

No

Erosion of natural deposits

 

Inorganic Contaminants Sampled at the Entry Point to the Distribution System

Contaminant Name

Year

Average

Range
Low &ndash High

Sample Size

Unit of Measure

MCL

MCLG

MCL Violation

Typical Sources

Barium

2016

0.04

0.04 to 0.04

1

ppm

2

2

No

Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits

Chromium

2016

1.7

1.7 to 1.7

1

ppb

100

100

No

Discharge from steel and pulp mills; erosion of natural deposits

Fluoride

2016

0.26

0.26 to 0.26

1

ppm

4

4

No

Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories

Nitrate

2016

0.28

0.28 to 0.28

1

ppm

10

10

No

Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits

 

Secondary Contaminants**
**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.

Contaminant Name

Year

Average

Range
Low &ndash High

Sample Size

Unit of Measure

Secondary Standard

Sodium

2016

7.5

7.5 to 7.5

1

ppm

N/A

 

 

Unregulated Contaminants***

EPA has implemented the Unregulated Contaminant Monitoring Rule (UCMR) to collect data for contaminants that are suspected to be present in drinking water and do not have health-based standards set under the Safe Drinking Water Act. EPA uses the results of UCMR monitoring to learn about the occurrence of unregulated contaminants in drinking water and to decide whether or not these contaminants will be regulated in the future. We performed monitoring and reported the analytical results of the monitoring to EPA in accordance with its Third Unregulated Contaminant Monitoring Rule (UCMR3). Once EPA reviews the submitted results, the results are made available in the EPA&rsquos National Contaminant Occurrence Database (NCOD) (http://www.epa.gov/dwucmr/national-contaminant-occurrence-database-ncod) Consumers can review UCMR results by accessing the NCOD. Contaminants that were detected during our UCMR3 sampling and the corresponding analytical results are provided below.

Contaminant Name

Year

Average

Range
Low &ndash High

Sample Size

Unit of Measure







Violations, Significant Deficiencies, Backflow/Cross-Connection, and Formal Enforcement Actions

No Violations or Formal Enforcement Actions