Wells
Over 90% of North Castle Residents rely on drilled wells for their water supply. Therefore it is important to take precautions (especially those who have septic systems) on what you apply to your lawns or use and dispose of through the drains in your homes; these could contaminate groundwater and/or your drinking water if you have a well.
Ground Water and Drinking Water EPA
Extensive resources for learning more about drinking water standards, protecting sources of drinking water and highlighting current EPA actions. This site at times, may be off- line due to updating topics or revisions to the site.
About Private Water Wells EPA- basic information, well construction, keeping your well safe
Individual Water Supply Wells- Fact Sheet on Recommended Residential water Quality Testing (NYS Dept. of Health)
Westchester County Health Dept. Rules & Regulations for Private Well Water Testing (2007)
The 2007 Private Well–Water Testing Law generally applies to properties served by potable private wells, and requires testing of private well-water systems upon first use of new wells, re-use of a private well not in use as a potable water supply for a period of five years, and private well systems upon the sale or lease of any real property .
FAQ applies to new wells, contract sales and leases (very comprehensive)