Surface Water Sampling and Associated Information

This surface water sampling data is generated from daily surface water monitoring from 20 sampling locations. This water sampling begins at the derailment site in East Palestine and include streams flowing to the Ohio River. This data is analyzed at a certified laboratory, testing for what’s known as volatile organic compounds (VOCs), semi-volatile organic compounds (SVOCs), and glycols. To ensure accuracy, the data undergoes Quality Assurance and Quality Control measures. The process is detailed; therefore, results may not be available for 4 to 6 days after the samples were collected.

We have launched this new interactive map to show you sampling results at each location.

Background samples are collected upstream to show that the detected chemicals are from the incident and not from an unrelated source upstream.

Some of the samples for 2/16 and background samples from 2/19 show elevated readings, likely a result of cross contamination either in the field or lab.

Despite declining levels of contaminants in surface water samples, prolonged exposure with the water or any human consumption of untreated surface water is strongly discouraged.

View the Interactive Sampling Map

Sampling Reports

• Report date: March 23, Sampling date: March 19
• Report date: March 24, Sampling date: March 18
• Report date: March 24, Sampling date: March 17
• Report date: March 30, Sampling date: March 17
• Report date: March 21, Sampling date: March 16
• Report date: March 30, Sampling date: March 16
• Report date: March 22, Sampling date: March 15
• Report date: March 27, Sampling date: March 15
• Report date: March 23, Sampling date: March 15
• Report date: March 22, Sampling date: March 14
• Report date: March 22, Sampling date: March 14
• Report date: March 23, Sampling date: March 13
• Report date: March 23, Sampling date: March 13
• Report date: March 21, Sampling date: March 12
• Report date: March 18, Sampling date: March 12
• Report date: March 17, Sampling date: March 11
• Report date: March 21, Sampling date: March 11
• Report date: March 23, Sampling date: March 10
• Report date: March 27, Sampling date: March 10
• Report date: March 17, Sampling date: March 9
• Report date: March 17, Sampling date: March 9
• Report date: March 12, Sampling date: March 8
• Report date: March 28, Sampling date: March 8
• Report date: March 12, Sampling date: March 7
• Report date: March 16, Sampling date: March 7
• Report date: March 22, Sampling date: March 7
• Report date: March 20, Sampling date: March 6
• Report date: March 10, Sampling date: March 6
• Report date: March 10, Sampling date: March 5
• Report date: March 18, Sampling date: March 5
• Report date: March 14, Sampling date: March 4
• Report date: March 12, Sampling date: March 4
• Report date: March 23, Sampling date: March 4
• Report date: March 14, Sampling date: March 3
• Report date: March 10, Sampling date: March 3
• Report date: March 13, Sampling date: March 2
• Report date: March 15, Sampling date: March 1
• Report date: March 7, Sampling date: Feb. 28
• Report date: March 10, Sampling date: Feb. 27
• Report date: March 30, Sampling date: Feb. 27
• Report date: March 6, Sampling date: Feb. 26
• Report date: March 2, Sampling date: Feb. 25
• Report date: March 2, Sampling date: Feb. 24
• Report date: March 3, Sampling date: Feb. 23
• Report date: March 3, Sampling date: Feb. 22
• Report date: March 1, Sampling date: Feb. 21
• Report date: Feb. 26, Sampling date: Feb. 20
• Report date: Feb. 25, Sampling date: Feb. 19
• Report date: March 1, Sampling date: Feb. 18
• Report date: Feb. 21, Sampling date: Feb. 16
• Report date: March 27, Sampling date: Feb. 16
• Report date: March 20, Sampling date: Feb. 15
• Report date: Feb. 20, Sampling date: Feb. 15
• Report date: Feb. 21, Sampling date: Feb. 14
• Report date: March 23, Sampling date: Feb. 14
• Report date: Feb. 18, Sampling date: Feb. 13
• Report date: March 18, Sampling date: Feb. 13
• Report date: March 18, Sampling date: Feb. 12
• Report date: Feb. 16, Sampling date: Feb. 11
• Report date: March 14, Sampling date: Feb. 11
• Report date: March 13, Sampling date: Feb. 10
• Report date: Feb. 14, Sampling date: Feb. 10
• Report date: March 14, Sampling date: Feb. 9
• Report date: Feb. 27, Sampling date: Feb. 9
• Report date: March 27, Sampling date: Feb. 7
• Report date: March 14, Sampling date: Feb. 6
• Report date: March 20, Sampling date: Feb. 4
• Report date: Feb. 6, Sampling date: Feb. 4
• Surface Water Sampling Locations
• Interactive Sampling Locations Map