These types of water system supply water to 25 or more of the same people for at least six months per year in places other than their residences. Neilson Research Corporation provides analytical testing for schools, hospitals and workplaces to meet these requirements. Our staff provides unquestionable data to satisfy regulatory authorities under the Safe Drinking Water Act.

Routine Chemical Monitoring 

Non-transient/Non-community Water Systems are subject to the following requirements for the 2017-2020 compliance period.



Surface Water  


Ground Water  


Inorganics Yearly  




Nitrate Quarterly  




Volatile Organics Yearly  




Disinfection Byproducts Quarterly  




Synthetic Organics One  


Nitrite One  


Asbestos One  


Radionuclides 4 consecutive quarters  


Lead and Copper One round  


This table describes base line monitoring only. You will find details on number, location and timing of samples at