State Report

Rhode Island

Total Water Systems

91

Total Contaminants

89

Rhode Island

's Water

Rhode Island relies on reservoirs, rivers, and groundwater aquifers as its primary water sources, with the Scituate Reservoir supplying drinking water to much of the state. Despite its small size, Rhode Island faces water quality challenges from industrial pollutants, stormwater runoff, and aging infrastructure. Coastal areas also contend with saltwater intrusion, impacting freshwater supplies.

Rhode Island

Total Water Systems

91

Total Contaminants

89

Rhode Island relies on reservoirs, rivers, and groundwater aquifers as its primary water sources, with the Scituate Reservoir supplying drinking water to much of the state. Despite its small size, Rhode Island faces water quality challenges from industrial pollutants, stormwater runoff, and aging infrastructure. Coastal areas also contend with saltwater intrusion, impacting freshwater supplies.

Largest Contaminants

Manganese

Water Systems Affected

44

People Impacted

1,015,631

Risk Level

30

/100

Learn more

Haloacetic acids

Water Systems Affected

35

People Impacted

995,255

Risk Level

45

/100

Learn more

Total trihalomethanes

Water Systems Affected

44

People Impacted

969,111

Risk Level

75

/100

Learn more

Haloacetic acids

Water Systems Affected

42

People Impacted

964,460

Risk Level

45

/100

Learn more

Nitrate

Water Systems Affected

82

People Impacted

937,647

Risk Level

45

/100

Learn more

Chromium

Water Systems Affected

32

People Impacted

904,271

Risk Level

85

/100

Learn more
Rhode Island Water Health Analysis

Rhode Island Water Health Analysis

Overall Health Analysis

Rhode Island's water health is a critical public concern, with 89 contaminants detected across 91 water systems. These contaminants have the potential to impact the health and well-being of millions, with some systems serving as many as 1,015,631 residents. Among the substances of highest concern are Manganese, Haloacetic Acids, Total Trihalomethanes, Nitrate, and Chromium. Each of these contaminants poses its own unique challenges, from their sources to their long-term effects on human health. Understanding the prevalence and risks associated with these contaminants underscores the importance of being informed about local water quality.

Top Six Contaminants

Manganese

Water Systems Affected: 44

People Impacted: 1,015,631

Manganese is a naturally occurring metal that can infiltrate water supplies through the erosion of rocks and soil. While low levels of manganese are considered safe and even essential for human health, excessive amounts can lead to neurological issues, particularly in children and vulnerable populations. Prolonged exposure can impair brain development and lead to cognitive deficits.

Haloacetic Acids

Water Systems Affected: 35

People Impacted: 995,255

Haloacetic acids (HAAs) are byproducts of the water disinfection process, formed when chlorine interacts with organic matter in water. Long-term exposure to HAAs has been linked to an increased risk of bladder and colorectal cancer. These acids may also harm the liver and kidneys, with developing fetuses and young children being more vulnerable to these effects.

Total Trihalomethanes

Water Systems Affected: 44

People Impacted: 969,111

Total trihalomethanes (TTHMs) are another group of harmful byproducts formed during the water disinfection process. TTHMs are associated with a range of health concerns, including an increased cancer risk, reproductive issues, and potential damage to the central nervous system. Their prevalence highlights the complexity of balancing disinfection with chemical byproduct risks.

Nitrate

Water Systems Affected: 42

People Impacted: 964,460

Nitrate contamination frequently originates from agricultural runoff and fertilizers. Once in the water, nitrate can pose serious health risks, particularly to infants through a condition called "blue baby syndrome," which reduces the blood’s ability to carry oxygen. Chronic exposure can also increase the risk of certain cancers and thyroid problems.

Chromium

Water Systems Affected: 82

People Impacted: 937,647

Chromium, particularly in its hexavalent form, is a known carcinogen that can enter water supplies due to industrial discharge and erosion of natural deposits. Exposure has been linked to kidney and liver damage, respiratory issues, and an elevated risk of cancer. Rural communities often face heightened exposure due to proximity to farming and industrial sites.

Most Significant Health Impacts

The contaminants found in Rhode Island's water systems contribute to concerning health consequences that demand urgency. Among the most serious effects are heightened cancer risks, especially from long-term exposure to disinfection byproducts like trihalomethanes and haloacetic acids. Neurotoxic effects, particularly from manganese and chromium, can disrupt brain development in children and neurological systems in the elderly. Vulnerable populations, including pregnant women and infants, face unique dangers, such as developmental delays or life-threatening conditions like blue baby syndrome caused by nitrate exposure. These widespread health risks raise critical questions about the safety of water supplies and demand vigilance from all Rhode Islanders.

Conclusion

The state of Rhode Island’s water quality reveals a pressing need for improved safeguards and public awareness. While the presence of 89 contaminants is concerning, the six most critical substances serve as a call to action for better filtration technology, stringent regulations, and community engagement. Understanding water health is the first step in ensuring safer and cleaner supplies for all citizens. Rhode Islanders deserve to feel confident that their families are protected from the long-term risks posed by contaminated water sources.

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