Water Source and Distribution in Bradley County
The water supply for Cleveland Utilities
Cleveland Utilities serves approximately 95,087 people through 37,436 connections using surface water sources. This water undergoes treatment before reaching residential taps in Bradley County.
Role of surface water
Surface water sources in this region can vary seasonally and be influenced by environmental factors, which can affect the presence of algae and its byproducts in the distribution system.
Pathways for Algal Toxins to Enter Household Water
Algal toxins originate in surface water bodies
Algal toxins such as microcystins, cylindrospermopsin, and anatoxin-a are natural compounds produced by cyanobacteria in surface waters. These toxins can enter the water system when algae blooms occur.
Effect of source type on toxin presence
Since Cleveland Utilities relies on surface water, typical pathways for algal toxins include bloom events that may release toxins into intake waters, although regular testing monitors these occurrences.
Interpreting Government Sampling Data
EPA UCMR4 monitoring results for Cleveland Utilities
Between August and November 2020, EPA testing found no reported detections above reporting levels for microcystins (0.3 µg/L), cylindrospermopsin (0.09 µg/L), or anatoxin-a (0.03 µg/L) in the public water system.
Implications of no detections above reporting levels
This data confirms that during this monitoring period, algal toxins were either not present or below quantifiable levels in the public water supply, with no health-based violations ever recorded.
Limitations of public water system data
The monitoring results reflect system-wide conditions and do not measure water quality at individual household plumbing or private wells, where conditions can vary.
Household Plumbing Factors and Their Impact
Plumbing materials and system age
The materials and age of household plumbing do not affect the presence of algal toxins but may influence how water quality changes between the main distribution point and the tap.
Distribution system influence
Water quality can be influenced by residence time in the distribution pipes and by-site specific factors, emphasizing the importance of assessing individual water samples for precise information.
Additional Considerations for Commercial Users and Large Households
Commercial or industrial water use
Operators with higher or specialized water demands may need more detailed assessments, including continuous monitoring and tailored filtration strategies.
Large households and seasonal residences
Households with higher water usage or seasonal properties may see different water dynamics, which can affect the efficiency and lifespan of water treatment systems.
Next Steps for Household Water Quality Assessment
Order a specialized test for algal toxins
To understand your home's specific water conditions, order a detailed test for microcystins, cylindrospermopsin, and anatoxin-a at your tap. This test will determine if algal toxins are present in your household water.
Using filtration to address algal toxins
If testing indicates measurable algal toxins, the C-Series Algal Toxins Filter ships ready to configure and can reduce these compounds effectively at the point of use, complementing the utility's water treatment.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2020-11-17. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR4 monitoring (2018-2020) for Cleveland Utilities (TN0000117), TN: 96 results across 3 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level