Doylestown Township requires residents who are not hooked up to public sewer and have a well to have their well water tested every 3 years. Here is some information about an upcoming webinar (10/6 and 11/1) offered through the Penn State Extension. Test kits will be sent to webinar participants at no charge. For more information, please visit https://extension.psu.edu/extension-to-offer-private-drinking-water-testing-webinars-this-fall to register for this webinar.
Even if you don’t attend the webinar, they do offer reasonably priced testing through their lab (they do not offer PFOS testing ): https://agsci.psu.edu/aasl/water-testing/drinking-water-testing