This category includes water systems that provide drinking water where people do not remain for long periods of time. This type of system serves more than 25 users but does not serve the same people every day. Neilson Research Corporation provides regular water analysis for restaurants, parks, playgrounds, and campgrounds to meet these requirements. Our staff provides unquestionable data to satisfy regulatory authorities under the Safe Drinking Water Act.
Transient Non-community Water Systems are subject to the following requirements for the 2017-2020 compliance period.
|Inorganics (Antimony, Arsenic, Barium, Beryllium, Cadmium, Chromium, Fluoride, Mercury, Nickel, Nitrite, Selenium, and Thallium)||once
|Turbidity (for surface water only)||1 reading every 4 hours|
|Source of Water|
|Coliform Bacteria||Ground Water (well)||Surface Water (lake, stream)|
|Average Daily Population Served||Monthly Sampling|
|< 1000 Quarterly Sampling||>1000 Monthly Sampling|
|Quarterly Coliform Bacteria Sampling|
|Quarter||Collect Sample Between|
|1st Quarter||January 1 and March 31|
|2nd Quarter||April 1 and June 30|
|3rd Quarter||July 1 and September 30|
|4th Quarter||October 1 and December 31|
These tables describe base line monitoring only. You will find details on number, location, and timing samples at www.oregon.gov/DHS/hp/dwp.