National Drinking Water Database
Saint Paul Regional Water Services Utilities - Saint Paul, MN
Serves 414,735 people
N-nitrosopyrrolidine (npyr)N-nitrosopyrrolidine is a synthetic chemical with limited research use; it is classified as possibly carcinogenic to humans.
Testing History-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
|N-nitrosopyrrolidine (npyr)N-nitrosopyrrolidine is a synthetic chemical with limited research use; it is classified as possibly carcinogenic to humans.||0 ppb|
|No||Legal at any levelThis is the Federal Limit. State Limits may be lower.|
|NOTE: Each dot in the above graph represents one month.|
* Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance.
Health Based and Legal Limits for N-nitrosopyrrolidine (npyr)
Health Based Limits for N-nitrosopyrrolidine (npyr)
There are no health based standards that EWG is using for this chemical
|Samples taken that day||Number of Non-Detects||Range of Results|
|2008-11-13||0 ppb||1||1||0 ppb|