North Penn Water Authority - Committed to Providing Safe, Reliable, and Economical Water
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NPWA’s Response to the Environmental Working Group’s Tap Water Database:

The North Penn Water Authority (NPWA) fully stands behind the water we provide to our customers. Our water is safe to drink. It is not getting anybody sick and is not causing cancer. We use the best available water treatment technology and our system operators, treatment plant operators and team of Water Quality professionals are highly trained and experienced individuals who work every day to make sure that NPWA water meets or exceeds all Federal EPA and State PA DEP drinking water standards.

The database that the Environmental Working Group (EWG) has put together is a compilation of results that NPWA makes available to our customers every year through our Drinking Water Quality Report. We send out Drinking Water Quality Reports and notices of its availability to our customers through US mail and email every year. Reports are also available on our website for viewing anytime, day or night.

The “Health Guideline” that EWG is using as their guideline for healthy water is a number that the State of California uses as their “Maximum Contaminant Level Goal” or MCLG. It is important to note that a MCLG is not an enforceable standard or regulation that any water supplier, even those in California, are required to meet. The “Maximum Contaminant Level” or MCLs, are the highest level of a contaminant that is allowed in drinking water.  MCLs are set as close to the MCLGs as feasible using the best available treatment technology. The numbers reported for NPWA by EWG for certain contaminants are so infinitesimally small that it should not cause anyone any concern. The EWG’s characterization of this data as being harmful to the public is completely misleading.

NPWA adheres to strict EPA and PA DEP regulations and standards and we test our water routinely to ensure the safety and quality of our water. NPWA would inform our customers if we were ever in violation with the strict guidelines of EPA and PA DEP.

If you are a North Penn Water Authority customer and would like to view our Water Quality Report, you can access it on our website: If you would like a physical copy, please email with your account number, name and address or call our office at 215-855-3617.




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North Penn Water Authority
300 Forty Foot Road
Lansdale, PA 19446
Phone: 215.855.3617
Fax: 215.855.2756
After Hours Emergency Number:
Safe Drinking Water Hotline:
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