Updated July 3: Full test results of Salem's drinking water

Salem officials have released test results of the city's water during the do-not-drink water advisory issued on May 29 and reissued on June 8.

Results from recent water samples taken show that toxin levels are below EPA's health advisory guidelines for vulnerable populations. Samples from tests taken June 18, had shown a one-day spike in toxin levels that were above EPA's health advisory guidelines for vulnerable populations.

Vulnerable populations include:

Children under the age of six

People with compromised immune systems or pre-existing liver conditions

People receiving dialysis treatment, or other sensitive populations

The elderly

Pregnant women or nursing mothers

Pets

Check back daily for the latest test results.

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July 3

Data posted below includes results received July 3, from samples taken as late as June 30.

July 1

Data posted below includes results received July 1, from samples taken as late as June 29.

June 29

Data posted below includes results received June 29, from samples taken as late as June 27.

June 28

Data posted below includes results received June 28, from samples taken as late as June 26.

June 26

Data posted below includes results received June 26, from samples taken as late as June 23.

June 25

Data posted below includes results received June 24, from samples taken as late as June 22.

June 23

Data posted below includes results received June 23, from samples taken as late as June 21.

June 22

Data posted below includes results received June 22, from samples taken as late as June 20.

June 21

Data posted below includes results received June 21, from samples taken as late as June 19.

June 20

Data posted below includes results received June 20, from samples taken as late as June 18.

June 19

Data posted today includes results received June 19, from samples taken as late as June 16.

June 18

Data posted below includes results received June 17, from samples taken as late as June 15.

June 16

Data posted below includes results received June 16, from samples taken as late as June 14.

June 15

Data below includes results received June 15, from samples taken as late as June 13.

June 14

Data below includes results received June 14, from samples taken as late as June 12.

June 13

Data below includes results received June 13, from samples taken June 10 and June 11.

June 12

Data below includes results received June 12, from samples taken as late as June 9.

June 10

Data posted below includes results received June 10, from samples taken as late as June 8.

June 9

Data posted below include results received June 9, from samples taken as late as June 7.

Update at 2:30 p.m. on June 8:

Salem city officials on Friday are maintaining a do-not-drink water advisory for children younger than 6 and some adults with compromised immune systems.

The renewed advisory came after test results received Wednesday once again showed cyanotoxins in the city's drinking water system, with levels higher than those set out under U.S. Environmental Protection Agency guidelines for those at-risk populations, according to the advisory.

The results showed toxin levels above safe thresholds for vulnerable populations at just one location — northeast Salem. Tests showed the toxin microcystin at 0.351 parts per billion last Sunday (June 3) and .3201 PPB on Monday (June 4).

The safe threshold for vulnerable populations of microcystin is 0.3, and 1.6 PPB for healthy adults.

On Thursday, results from a Tuesday (June 5) sample came back within safe limits for the toxins. But on Friday, results from a Wednesday (June 6) sample showed microcystin in the water exceeding safe levels.

Other locations around Salem also have shown traces of microcystin and cylindrospermopsin in the drinking water, but at levels below the safe threshold.

Here's the raw data:

ORIGINAL STORY

The City of Salem lifted its drinking water advisory on Saturday following two consecutive test results that showed toxin levels below health advisory levels.

City officials also posted the results of tests taken before and during the health advisory.

Five tests dating back to May 23 showed toxins above levels recommended for vulnerable populations.

Four results also showed three elevated tests from samples taken just outside the city's intake for drinking water in the North Santiam River.

Salem water crisis timeline: What city officials knew and when

The city originally said it got the earliest test results on Saturday, May 26. But during a Friday, June 1, emergency city council meeting, officials revealed they got results back on Friday, May 25, that showed toxin levels had spiked to more than double health advisory levels for healthy adults on at least one day in May and ten times above the safe amount for vulnerable populations. The city released a summary table of results on June 1, backing that up.

The results posted Saturday, June 2, however, say the city got the results of elevated levels on May 26.

The discrepancy is due to a typographical error, city spokesman Kenny Larson said Sunday.

"As soon as we realized it and published it, we moved as fast as we could to fix it," he said.

Larson said here's what actually happened:

The city received preliminary data on Friday, May 25, indicating there was a detection of cylindrospermopsin at the entry point to the water distribution system. That result was determined using the less accurate but faster ELISA analytical method and was below the Oregon Health Authority guideline values for drinking water.

However, the city was still waiting for more accurate results analyzed using the liquid chromatography-mass spectrometry method, which would be available on Saturday, May 26. If those results indicated that guideline values were exceeded, the city and its wholesale customers would face an advisory.

Either way, they issued the water advisory on May 29.

More: Salem water update: City officials knew they had a problem last Friday

More: Salem's drinking water warning is lifted. Here's what to do now

More: From bloom to ban: How toxic algae fouled Salem's water for the first time

The two toxins tested — cylindrospermopsin and microcystin — are believed to have originated with algae blooms in Detroit Lake that flowed downstream into the North Santiam River, where Salem gets its drinking water

The city is monitoring a new algae bloom reported the morning of June 1, said Lacey Goeres-Priest, Salem's water quality supervisor. The new algae bloom is in the Detroit Reservoir in the Tumble Creek area east of Mongold, Goeres-Priest said.

Here are the full results of the tests.