Siouxland District Health Department

Creating a healthy community for all

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Reportable Disease Hotline

To report diseases immediately, use the Iowa Department of Public Health 24/7 disease reporting telephone hotline: 1-800-362-2736. 

 
Want to know when and how to report certain diseases view IDPH's Disease Reporting Poster.

Disease Tracker

Interested in knowing what illnesses are being reported in Woodbury County? Find out by viewing our Disease Tracker.

Radon

Testing your home for radon is easy and inexpensive. Test kits are available at SDHD for only $7. Learn more about radon and testing your home. 

Quitline Iowa

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Quit Now 

Smoke Free Housing

Learn more about owning or renting a smoke free apartment and which Woodbury County apartment complexes are smoke free.

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WIC Appointment?

Please read the Iowa WIC Rights & Responsibilities statement before your scheduled certification appointment(s). Lea la Declaración de derechos y responsabilidades de WIC de Iowa antes de su(s) cita(s) de certificación. 

Make sure you are prepared and you bring everything you need. Find out what you should bring with you

Move Your Way

 Move Your Way link: Want to get more physical activity? Build a weekly plan

 

Learn more about our Move Your Way Campaign

IMMUNIZATIONS

Need a copy of your child's immunization record? Click Here. Must have name, date of birth, and a Social Security or Medicaid number.

To schedule an appointment, call 712-279-6119 and ask for the clinic.

Immunization eligibility information for Vaccine for Children's (VFC) program in English and Spanish 

Click here for more information.

All clinics held at SDHD, 1014 Nebraska St.

There is a $15.00 administration fee per child for all non-Iowa Medicaid children receiving vaccinations through our immunization clinics.  We accept cash, check, credit or debit cards for payment at this time. In addition, we are unable to accept children with Hawk-I coverage.  These children should be taken to their physician for immunizations.

  

Home Services / Programs
Coliform Bacteria PDF Print E-mail

Coliform Bacteria and Drinking Water

Public water systems are required to deliver safe and reliable drinking water to their customers 24 hours a day, 365 days a year. If the water supply becomes contaminated, consumers can become seriously ill. Fortunately, public water systems take many steps to ensure that the public has safe, reliable drinking water. One of the most important steps is to regularly test the water for coliform bacteria.

What are coliform bacteria?

Coliform bacteria are organisms that are present in the environment and in the feces of all warm-blooded animals and humans. Coliform bacteria will not likely cause illness. However, their presence in drinking water indicates that disease-causing organisms (pathogens) could be in the water system. Most pathogens that can contaminate water supplies come from the feces of humans or animals. Testing drinking water for all possible pathogens is complex, time-consuming, and expensive. It is relatively easy and inexpensive to test for coliform bacteria. If coliform bacteria are found in a water sample, water system operators work to find the source of contamination and restore safe drinking water. There are three different groups of coliform bacteria; each has a different level of risk.

Total coliform, fecal coliform, and E. coli

Total coliform, fecal coliform, and E. coli are all indicators of drinking water quality. The total coliform group is a large collection of different kinds of bacteria. Fecal coliforms are types of total coliform that mostly exist in feces. E. coli is a sub-group of fecal coliform. When a water sample is sent to a lab, it is tested for total coliform. If total coliform is present, the sample will also be tested for either fecal coliform or E. coli, depending on the lab testing method.

   

Total coliform bacteria are commonly found in the environment (e.g., soil or vegetation) and are generally harmless. If only total coliform bacteria are detected in drinking water, the source is probably environmental. Fecal contamination is not likely. However, if environmental contamination can enter the system, there may also be a way for pathogens to enter the system. Therefore, it is important to find the source and resolve the problem.

Fecal coliform bacteria are a sub-group of total coliform bacteria. They appear in great quantities in the intestines and feces of people and animals. The presence of fecal coliform in a drinking water sample often indicates recent fecal contamination » meaning that there is a greater risk that pathogens are present than if only total coliform bacteria is detected.

E. coli is a sub-group of the fecal coliform group. Most E. coli bacteria are harmless and are found in great quantities in the intestines of people and warm-blooded animals. Some strains, however, can cause illness. The presence of E. coli in a drinking water sample almost always indicates recent fecal contamination » meaning there is a greater risk that pathogens are present.

A note about E. coli: E. coli outbreaks receive much media coverage. Most outbreaks have been caused by a specific strain of E. coli bacteria known as E. coli O157:H7. When a drinking water sample is reported as "E. coli present" it does not mean that this dangerous strain is present and in fact, it is probably not present. However, it does indicate recent fecal contamination. Boiling or treating contaminated drinking water with a disinfectant destroys all forms of E. coli, including O157:H7.

What happens if coliform bacteria are found in my water?

When coliform bacteria are found, water systems investigate to find out how the contamination got into the water. They collect additional, or "repeat," water samples for testing, and often inspect the entire system. Taking repeat samples helps determine whether an actual problem exists in the system. If any of the repeat samples detect coliform bacteria, the initial findings are considered confirmed.

What happens if total coliform bacteria are confirmed in my water?

If total coliform bacteria are confirmed in your drinking water, your water system should be inspected to find and eliminate any possible sources of contamination. Once the source is identified, it can usually be resolved by making system repairs, flushing, and adding chlorine for a short period of time. The state Health Department works with water systems and utility managers to help resolve such problems. When total coliform bacteria are confirmed in drinking water, a water system or utility is required to notify its customers within 30 days about the situation. The Health Department recommends that this notice be distributed as soon as possible. The notice will inform you of actions being taken to correct the problem, when the problem will likely be resolved, and what you may need to do until then.

What happens if fecal coliform bacteria or E. coli are confirmed in my water?

Confirmation of fecal coliform bacteria or E. coli in a water system indicates recent fecal contamination, which may pose an immediate health risk to anyone consuming the water. Responding to health emergencies is the state Health Department» s highest priority. A "Health Advisory" will be issued within 24 hours to alert all water users that there is a health risk associated with the water supply. In most cases, the use of boiled or bottled water will be recommended for drinking and cooking. The notice will inform customers of actions being taken to correct the problem, and when the problem will likely be resolved. The department will inspect the system as soon as possible to assist the water system in resolving the problem. More water samples will be taken to find and eliminate potential contamination sources, and chlorination and flushing of the system will most likely occur. The Health Advisory will remain in effect until the situation is resolved and the water is safe to drink.

 

 
 
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