Water Quality Data - Cyanotoxins

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To meet Oregon Health Authority rules, the City of Salem monitors for the presence of Total Microcystin and Cylindrospermopsin (cyanotoxins).  Regulatory monitoring for cyanotoxins in North Santiam Watershed typically begins in April and ends in October (algae season).  Additional monitoring occurs November – April depending on the weather conditions and Detroit Reservoir water levels. Samples are collected from multiple locations at Detroit Reservoir, Big Cliff Reservoir, the North Santiam River, and the two key locations listed below:

  • Intake – this is where water from the North Santiam River enter s the Geren Island Water Treatment Facility.
  • Aldersgate – this is the point where treated drinking water from Geren Island enters Salem's drinking water distribution system.

Data from the Intake and from Aldersgate will be used to determine when to activate additional drinking water treatment processes at Geren Island, Thanks to an in-house ELISA testing system, the City is now able to provide Total Microcystin and Cylindrospermopsin test results faster.   When toxins are detected in the North Santiam River, samples will be collected daily and the results will be available the following day on the City website.

​City of Salem ELISA Data

 

  
  
  
4/9/2019Aldersgate ELISA test data through April 9, 2019aldersgate-elisa-test-data-2019-04-09.pdf
4/4/2019Aldersgate ELISA test data through April 4, 2019aldersgate-elisa-test-data-2019-04-04.pdf
3/26/2019Aldersgate ELISA test data through March 26, 2019aldersgate-elisa-test-data-through-2019-03-26.pdf
  
  
  
4/10/2019Intake ELISA test data through April 10, 2019middle-intake-elisa-test-data-2019-04-10.pdf
4/4/2019Intake ELISA test data through April 4, 2019middle-intake-elisa-test-data-2019-04-04.pdf
3/26/2019Intake ELISA test data through March 26, 2019middle-intake-elisa-test-data-through-2019-03-26.pdf

Regulations on Cyantoxins

 

Algal Toxin

Health Advisory (Vulnerable Population)

Health Advisory
(All Population)

Health Advisory (Recreational Advisory)

Total Microcystins

0.3 µg/L

1.6 µg/L

4 µg/L

Cylindrospermopsin

0.7 µg/L

3 µg/L

8 µg/L

Health Advisory Level (HAL)

As defined by OAR 333-061-0520(8), health advisory level is a concentration of a cyanotoxin determined by the US Environmental Protection Agency, as specified in OAR 333-061-0530(1), at or below which adverse health effects are not expected to occur if consuming water containing cyanotoxins at this concentration for up to 10-days.

µg/L = micrograms per liter of water

DateTitle (with link to item)Type
3/12/2019ELISA: Aldersgate test data through March 12, 2019aldersgate-elisa-test-data-through-2019-03-12.pdf
3/12/2019ELISA: Middle Intake test data through March 12, 2019middle-intake-elisa-test-data-through-2019-03-12.pdf
2/27/2019ELISA: Middle Intake test data through February 27, 2019middle-intake-elisa-test-data-through-2019-02-27.pdf
2/13/2019ELISA: Aldersgate test data through February 13, 2019aldersgate-elisa-test-data-through-2019-02-13.pdf
2/13/2019ELISA: Middle Intake test data through February 13, 2019middle-intake-elisa-test-data-through-2019-02-13.pdf
1/30/2019ELISA: Aldersgate test data through January 30, 2019aldersgate-elisa-test-data-through-2019-01-30.pdf

Data for samples collected May 21–June 30, 2018

Data posted below includes results received July 3, 2018, from samples taken as late as June 30, 2018, and processed by an external lab. The data is cumulative from samples taken as early as May 21, 2018

DateTitle (with link to item)Type
7/3/2018Water Quality: Aldersgate test data updated July 3, 2018aldersgate-cyanotoxins-data-updated-2018-07-03.pdf
7/3/2018Water Quality: All site test data summary updated July 3, 2018water-quality-all-testing-site-summary-updated-2018-07-03.pdf
7/3/2018Water Quality: Countryside test data updated July 3, 2018countryside-cyanotoxins-data-updated-2018-07-03.pdf
7/3/2018Water Quality: Doral test data updated July 3, 2018doral-cyantoxins-data-updated-2018-07-03.pdf
7/3/2018Water Quality: Lake Vanessa test data updated July 3, 2018lake-vanessa-cyantoxins-data-updated-2018-07-03.pdf
7/3/2018Water Quality: Middle Intake test data updated July 3, 2018middle-intake-cyanotoxins-data-updated-2018-07-03.pdf
7/3/2018Water Quality: Nebraska test data updated July 3, 2018nebraska-cyanotoxins-data-updates-2018-07-03.pdf
7/1/2018Water Quality: Aldersgate test data updated July 1, 2018aldersgate-test-data-updated-2018-07-01.pdf
7/1/2018Water Quality: All site test data summary updated July 1, 2018all-site-test-data-summary-updated-2018-07-01.pdf
7/1/2018Water Quality: Countryside test data updated July 1, 2018countryside-test-data-updated-2018-07-01.pdf
7/1/2018Water Quality: Doral test data update July 1, 2018doral-test-data-updated-2018-07-01.pdf
7/1/2018Water Quality: Lake Vanessa test data updated July 1, 2018lake-vanessa-test-data-updated-2018-07-01.pdf
7/1/2018Water Quality: Middle Intake test data updated July 1, 2018middle-intake-test-data-updated-2018-07-01.pdf
7/1/2018Water Quality: Nebraska test data updated July 1, 2018nebraska-test-data-updated-2018-07-01.pdf
6/29/2018Water Quality: Aldersgate test data updated June 29, 2018aldersgate-cyanotoxins-data-updated-2018-06-29.pdf
6/29/2018Water Quality: All site test data summary updated June 29, 2018water-quality-all-testing-site-summary-updated-2018-06-29.pdf
6/29/2018Water Quality: Countryside test data update June 29, 2018countryside-cyanotoxins-data-updated-2018-06-29.pdf
6/29/2018Water Quality: Doral test data updated June 29, 2018doral-cyantoxins-data-updated-2018-06-29.pdf
6/29/2018Water Quality: Lake Vanessa test data updated June 29, 2018lake-vanessa-cyantoxins-data-updated-2018-06-29.pdf
6/29/2018Water Quality: Middle Intake test data updated June 29, 2018middle-intake-cyanotoxins-data-updated-2018-06-29.pdf
6/29/2018Water Quality: Nebraska test data updated June 29, 2018nebraska-cyanotoxins-data-updates-2018-06-29.pdf

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