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Florida Division of Environmental Health
Water
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flask All samples collected to comply with initial construction or operational monitoring requirements, except for measurement of residual chlorine levels, must be analyzed by a laboratory that has been certified by the Department of Health.
Water Quality Standards The Maximum Contamination Level (MCL) for lead is 0.015 mg/L. A sample collected for lead analysis must be collected from the first flush of an indoor tap where water has been standing in the pipe for at least six hours.

The MCL for nitrate, is 10 mg/L.

A total Coliform MCL violation occurs when total Coliform bacteria are present in any compliance and repeat analysis sample.

A fecal Coliform MCL violation occurs when a fecal Coliform bacteria or Escherichia coli are present in any compliance or repeat analysis sample if the repeat test also shows the presence of Coliform bacteria.

If Coliform bacteria are present in the initial compliance sample, the water system supplier must collect a repeat sample on the next business day following notification of the presence of Coliform bacteria. See Bacteria Testing Flow Chart.

Monitoring Requirements Initial sampling requirements for newly constructed water systems are found in Limited Use (LU) and Private Water System Checklists.

LU community systems must collect routine monitoring samples for lead and nitrate every 36 months.

LU commercial systems must collect routine monitoring samples for lead and nitrate every 60 months.

The department may require annual monitoring for three years if MCLs are exceeded for lead or nitrate.

LU community and commercial systems must collect at least one remote sample of finished water for total and fecal Coliform analysis every calendar quarter.

For systems where disinfection is used, a source sample must also be collected on the same day as the finished sample.

The department may increase bacterial monitoring frequency to monthly if the water supply or system has a recent history of intermittent unsatisfactory results. This requirement may be continued as long as analysis results are intermittently unsatisfactory

The results of all analysis must be reported to the department within five days of receipt from the laboratory.

Additional analysis for other potential contaminants other than lead, nitrate and bacteria may be required if the water system well is located in a delineated area regulated by DEP or the well is located within 1000-feet of a contaminated well or other known source of contamination.

The water system supplier may request the department staff to collect monitoring compliance samples. The fee is $40 per visit, plus any local fees, plus the cost of the laboratory analysis. There may also be a fee for shipping.

Occupation Health and Safety Administration (OSHA) and the Florida Building Code require all commercial establishments to maintain a potable water for their employees and customers. Potable water standards require a minimal of annual testing for bacteria. There are liability issues as well that may result from not maintaining a potable water system.


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