2017 Water Quality Report

Continuing Our Commitment

The City of St. Cloud Public Services Department is pleased to present you with the 2017 Annual Water Quality Report. This report is designed to inform you about the quality water and services we deliver to you every day. Our constant goal is to provide you with a safe and dependable supply of  drinking water.

We want you to understand the efforts we make to continually improve the water treatment process and protect our water resources. We are committed to ensuring the quality and delivery of your water. We are pleased to report that our drinking water meets all federal and state requirements. We encourage public interest and participation in our community’s decisions affecting   drinking water.

If you have any questions about this report or concerning your water utility, please contact St. Cloud Utilities at 407-957-7344. For further information, see U.S. Environmental Protection Agency (EPA) water information at www.epa.gov/safewater.

The City of St. Cloud City Council is the City’s governing body. Council meetings are regularly held on the second and fourth Thursday of each month at 6:30 p.m. These meetings are open to the public and are held in the Council Chambers at City Hall. City Hall is located at 1300 Ninth St. in St. Cloud, Florida.

Our Drinking Water Source

The City of St. Cloud is supplied with water from groundwater wells that draw from a fresh water reservoir known as the Floridan Aquifer. The water from this aquifer is primarily fed by rainwater  which is filtered through hundreds of feet of sand and rock in a natural filtering process. Water from the aquifer is pumped from 6 Wells and is treated by a MIEX  system and  chlorinated for disinfection purposes and then fluoridated for dental health purposes. The wells tap the Floridan Aquifer and transmit water to one of the City’s 3 Treatment  Facilities. On an average day, our plants frequently produce in excess of 3,000,000 gallons of water. The water that is produced at our treatment facilities is then delivered through an underground network of water lines to your home or business. It is important to remember that we deliver water not only for consumption, but also for irrigation and fire fighting uses. Frequently the capability to deliver high volumes of water governs how we design our systems. St. Cloud is proud of our water capabilities, which contribute to a rating of ISO 2. This high rating helps keep home insurance costs down as compared to locations with lower ISO ratings.

Floridan Aquifer

Floridan Aquifer


Coliforms are bacteria that are naturally present in the environment and are used as an indicator that other, potentially harmful, waterborne pathogens may be present or that a potential pathway exists through which contamination may enter the drinking water distribution system. We found coliforms indicating the need to look for potential problems in water treatment or distribution. When this occurs, we are required to conduct assessment(s) to identify problems and to correct any problems that were found during these assessments. During the past year, two Level 2 assessments were required to be completed for our water system. Two Level 2 assessments were completed. During the assessments, no deficiencies were found. However, they were submitted to the department late.
Contaminant and Unit of Measurement
Dates of Sampling (mo./yr.)
TT Violation Result MCLG TT Likely Source of Contamination
Total Coliform Bacteria (until September 30, 2017)
1/17-12/17 Y Positive N/A TT Naturally present in the environment
Total Coliform Bacteria
(Beginning October 1, 2017)
10/17-12-17 N 4.35 0
For systems collecting at least 40 samples per month: presence of coliform bacteria in . 5% of monthly samples
Naturally present in the environment


Contaminant and Unit of Measurement
Dates of Sampling (mo./yr.) MCL Violation
Level Detected
Range of Results
MCGL MCL Likely Source of Contamination
Barium (ppm)
N 0.0182
0.0137 - 0.0182
2 2 Discharge of drilling wastes;            discharge from metal refineries;     erosion of natural deposits
Fluoride (ppm)
2/17 N 0.875 ND-0.875 4 4.0 Erosion of natural deposits;
discharge from fertilizer and aluminum factories. Water additive which promotes strong teeth when at optimum level of 0.7 ppm.
Sodium (ppm)
2/17 N 53.5 25.2-53.5 N/A
160 Salt water intrusion, leaching from soil


Contaminant and Unit of Measurement Dates of Sampling (mo./yr.) MCL Violation
Level Detected Range of Results MCGL MCL Likely Source of Contamination
Haloacetic Acids (HAA5) (ppb)
01/17—12/17 N 56.7 (highest LRAA)
N/A 60 By-product of drinking
water disinfection
Total Trihalomethanes (TTHM) (ppb)
01/17—12/17 N 67.2 (highest LRAA)
N/A 80 By-product of drinking
water disinfection
Chlorine Residual (mg/L)
2017 N 1.8
4 4 Water additive to control microbes


Contaminant and Unit of Measurement
Dates of sampling       (mo./yr)
AL  Exceeded   Y/N
90th          Percentile
No. of Sampling Sites Exceeding AL
MCGL MCL Likely Source of

Copper (tap water) (ppm)
N 0.304
1 1.3 1.3 Corrosion of household   plumbing systems; erosion of natural deposits; leaching from wood preservatives
Lead (tap water) (ppb)
N 3.7
0 0 15 Corrosion of household  plumbing systems; erosion of natural deposits

THE CITY OF ST. CLOUD routinely monitors for contaminants in your drinking water according to Federal and State laws, rules and regulations. Except where  indicated otherwise, this report is based on the results of our  monitoring for the period of January 1 to December 31, 2017. Data obtained before January 1, 2017 and  presented in this report are the most recent testing done in accordance with the laws, rules and regulations.


The table shows the results of our water-quality analyses. Every regulated contaminant that we detected in the water, even in the most minute traces, is listed here. The table contains the name of each substance, the highest level  allowed by regulation (MCL), the ideal goals for public health, the amount detected, the usual sources of such contamination, footnotes explaining our findings, and a key to units of measurement.


ACTION LEVEL (AL): The concentration of a contaminant, which, if exceeded, triggers treatment of other requirements that a water system must follow.

MAXIMUM CONTAMINANT LEVEL (MCL):The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to MCLGs as feasible using the best available treatment technology.

MAXIMUM CONTAMINANT LEVEL GOAL (MCLG): The amount of a contaminant may be present below which there is no known or expected risk to health. MCLGs allow for a margin of safety.

MAXIMUM RESIDUAL DISINFECTANT LEVEL (MRDL): The highest level of disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is  necessary for control of microbial contaminants.

MAXIMUM RESIDUAL DISINFECTANT LEVEL GOAL (MRDLG): Level of disinfectant that can be added to drinking water 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. 

ND: Not detected and indicates that the substance was not found by laboratory analysis.

PARTS PER BILLION (PPB) OR MICROGRAMS PER LITER (UG/L): One part by weight of analyte to 1 billion parts per weight of a water sample.

PARTS PER MILLION (PPM) OR MILLIGRAMS PER LITER (MG/L): One part by weight of analyte to 1 million parts per weight of a water sample.

RUNNING ANNUAL AVERAGE (RAA): Annual average utilizing the data results of the immediate last four quarters of the calendar year. As one quarter is added, the last one is removed.

LEVEL 1 ASSESSMENT: a study of the water system to identify potential problems and determine (if possible) why total coliform bacteria have been found in our water system.

LEVEL 2 ASSESSMENT: a very detailed study of the water system to identify potential problems and determine (if possible) why an E. coli MCL violation has occurred and/or why total coliform bacteria have been found in our water system on multiple occasions.

Treatment Technique (TT): A required  process intended to reduce the level of a contaminant in drinking water.

We monitored for Unregulated Contaminants (UCs) in 2014 & 2015 as part of a study to help the U.S. Environmental Protection Agency (EPA) determine the occurrence in drinking water of UCs and whether or not these contaminants need to be regulated. At present, no health standards (for example, maximum contaminant levels) or likely sources have been established for UCs. However, we are required to publish the detected analytical results of our UC monitoring in our annual water quality report.  For the complete list of results, including the non-detected contaminants, contact Doug Bright at (407) 957-7126.  If you would like more information on the EPA’s Unregulated Contaminants Monitoring Rule, please call the Safe Drinking Water Hotline at (800) 426-4791.