Water Quality
About 90% of people in the U.S. get their water from a community water system versus a private well. New Jersey has over 600 community water systems which provide drinking water to approximately 87% of the State's population. The U.S. Environmental Protection Agency sets regulations for treating and monitoring drinking water delivered by community water systems. Currently, there are water quality standards and monitoring requirements for over 90 contaminants. In New Jersey many water quality standards are set more stringently by the NJDEP.
Water is used for many purposes such as drinking, cooking, bathing, cleaning, and recreation.
Because water is so common in daily life, there are many opportunities for contaminated water to impact people's health.
There are many ways in which contaminants can enter a drinking water system. Human activities such as farming, livestock operations, pest control, and manufacturing processes use chemicals that can pollute our drinking water. Contaminants can also enter water supplies from naturally occurring chemicals and minerals in soils and rocks such as arsenic, radon, radium, and uranium. Other times, sewers overflow, wastewater treatment plants malfunction, or other accidents happen that can contaminate drinking water. Contaminants in drinking water can lead to a number of health issues, such as gastrointestinal illness, reproductive problems, and neurological disorders. It is important to remember that the type of health issue and its severity depends on the contaminant type, its concentration in the water, and an individual's exposure duration.
The U.S. Environmental Protection Agency and state environmental agencies share responsibility to protect drinking water provided by public water systems and to make sure it is safe for consumption (see U.S. EPA Drinking Water Contaminants - Standards and Regulations).
There are no federal or state regulations assuring the quality of the water consumed by NJ residents who obtain their drinking water from private wells. The New Jersey Private Well Testing Act (PWTA) assures that the purchasers and lessees of properties served by private potable wells are aware of the quality of their drinking water source prior to the sale or lease of a home or business. Sampling and testing must be conducted by certified laboratories.
The U.S. Environmental Protection Agency and state environmental agencies share responsibility to protect drinking water provided by public water systems and to make sure it is safe for consumption (see U.S. EPA Drinking Water Contaminants - Standards and Regulations).
There are no federal or state regulations assuring the quality of the water consumed by NJ residents who obtain their drinking water from private wells. The New Jersey Private Well Testing Act (PWTA) assures that the purchasers and lessees of properties served by private potable wells are aware of the quality of their drinking water source prior to the sale or lease of a home or business. Sampling and testing must be conducted by certified laboratories.
Water contamination affects everyone, but certain people are more susceptible to its effects. Sensitive populations include children, pregnant women, individuals with weakened immune systems, and older adults.
Be informed about your water by reading your annual
Consumer Confidence Report (sometimes called a Water Quality Report) about your public water system. Copies of the report are available through your water supplier, at libraries, and municipal offices.
If you are among the 13 percent of New Jersey residents who use their own source of drinking water, like a well, cistern, or spring, you are responsible for protecting and monitoring your water supply. It is essential that you test your water periodically, and maintain your well.
Be observant about your water by being aware of announcements in the local media about local activities that may pollute your source water.
Call 911 if you see suspicious activity in or around your water supply.
Be involved with your water by attending public hearings about new construction, storm water permitting, and town planning. Ask questions on any issue that may impact your water source.
Prevent water contamination by reducing or eliminating the use of pesticides and herbicides around your home and property. Be aware of what you put into your septic system; chemicals may enter your drinking water.
For more suggestions, see the U.S Environmental Protection Agency's list Water Resources Page.
If you are among the 13 percent of New Jersey residents who use their own source of drinking water, like a well, cistern, or spring, you are responsible for protecting and monitoring your water supply. It is essential that you test your water periodically, and maintain your well.
Be observant about your water by being aware of announcements in the local media about local activities that may pollute your source water.
Call 911 if you see suspicious activity in or around your water supply.
Be involved with your water by attending public hearings about new construction, storm water permitting, and town planning. Ask questions on any issue that may impact your water source.
Prevent water contamination by reducing or eliminating the use of pesticides and herbicides around your home and property. Be aware of what you put into your septic system; chemicals may enter your drinking water.
For more suggestions, see the U.S Environmental Protection Agency's list Water Resources Page.
The NJDEP tracks water quality for community water systems and private wells in New Jersey. The New Jersey Environmental Public Health Tracking Program receives drinking water data, for both public water supplies and private wells, from the NJDEP's Safe Drinking Water Information System (SDWIS) Exchange Network.
The frequency of community water system testing depends on factors such as the number of people served by a drinking water system, the type of water source, and the types of contaminants. Certain contaminants are tested for more frequently than others.
The frequency of community water system testing depends on factors such as the number of people served by a drinking water system, the type of water source, and the types of contaminants. Certain contaminants are tested for more frequently than others.
Links below are part of the New Jersey Environmental Public Health Tracking Program.
Community Water Systems
- Arsenic in Community Water Systems
- Community Water System Compliance
- Community Disinfection By-Products in Community Water Systems
- Nitrate in Community Water Systems
- Perchloroethylene (PCE) in Community Water Systems
- Radium in Community Water Systems
- Trichloroethylene (TCE) in Community Water Systems
- Uranium in Community Water Systems
Private Wells
- Arsenic in Private Wells
- Fecal Coliform or E. coli in Private Wells
- Gross Alpha in Private Wells
- Mercury in Private Wells
- Nitrate in Private Wells
- Use of Private Wells as Main Source of Drinking Water
Water Quality Resources
- NJDOH Drinking Water and Public Health Project
- NJDEP Division of Water Quality and Geoscience
- NJ Drinking Water Watch
- NJ Geological and Water Survey
- NJ Private Well Testing Act Data Summary, with maps by county, municipality and 2 mile by 2 mile grid
- U.S. EPA Drinking Water Rule Quick Reference Guides
