Important News on Closure from DVL

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WB Staff
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Important News on Closure from DVL

Post by WB Staff »

dvl closed.jpg
The Metropolitan Water District of Southern California has temporarily suspended all recreational activities at Diamond Valley Lake near Hemet because of an algal bloom.

The sometimes toxic cyanobacteria also known as blue-green algae has covered the lake, prompting officials to prohibit boating, fishing and hiking until further notice.

Video from Channel 7 News
http://abc7.com/hobbies/algae-shuts-dow ... t/3634843/




Press Release from Metro Water District

DIAMOND VALLEY LAKE CLOSED TO RECREATION BECAUSE OF LARGE
BLUE-GREEN ALGAE BLOOM COVERING LAKE PRODUCING CYANOTOXINS
Bloom not affecting safety, quality of Metropolitan’s treated drinking water
Recreational activities at Diamond Valley Lake have been temporarily suspended by the
Metropolitan Water District of Southern California because of a bloom of cyanobacteria—also
known as blue-green algae—covering the lake.
All recreational activities, including boating, fishing and hiking, have been suspended at the
lake near Hemet in southwest Riverside County until further notice.
Metropolitan water quality experts, however, assured the public that the quality of the
district’s treated drinking water has not been affected.
“This is a recreation issue, not a drinking water issue,” said Dr. Mic Stewart, Metropolitan’s
water quality manager.
“We don’t want folks coming into contact with or fishing in this water,” Stewart said. “We
are not using DVL as a drinking water source right now. Even if we did, our processes for
withdrawing the water from the lake and treating it will ensure its safety.”
The algae bloom—one the largest ever seen at the lake since it opened to the public for
recreation in October 2003—is caused by naturally occurring organisms that have produced large
areas of green water and mats of green scum floating on the lake. Blue-green algae blooms are
common this time of year because of the warm weather. The bloom is releasing cyanotoxins, which
in high concentrations can be harmful to humans and animals, especially when ingested.
Recreational activities at the lake could be suspended for a week or longer, officials said.
Metropolitan continues to monitor the blue-green algae bloom and test cyanotoxin levels and will lift
the suspension when conditions improve.
Attachments
dvl press release algae closure.jpg
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ash
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Re: Important News on Closure from DVL

Post by ash »

I wonder if bluestoning the lake contributes to the blue green alge bloom and as always its curious as to why its a health hazard to people on the lake and not those drinking from it or contacting it down stream. Inquiring minds want to know :wink:
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Kwin
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Re: Important News on Closure from DVL

Post by Kwin »

MWD has never bluestoned DVL as it is too large, costly and redundant. They will bluestone algal blooms "downstream" at Lake Skinner (where there is a water treatment plant) or treat the San Diego Canal, that connects the forebay at DVL to Skinner, prior to dissemination to the public for potable uses.

Feel free to peruse the link below for information as to why blue-green algal blooms occur...

http://cees.iupui.edu/research/algal-to ... oomfactors
toddmc
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Re: Important News on Closure from DVL

Post by toddmc »

Does anyone know when they are going to open the lake up?
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Re: Important News on Closure from DVL

Post by WB Staff »

MWD posted this info - the press release they mention and link to is the one posted above.

DVL Closed to Recreation Temporarily
Recreational activities at Diamond Valley Lake have been temporarily suspended because of a bloom of cyanobacteria—also known as blue-green algae—covering the lake. The bloom does not affect the safety or quality of Metropolitan's treated drinking water. The lake's condition will be reassessed on Tuesday, July 3.
Read the press release.
toddmc
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Re: Important News on Closure from DVL

Post by toddmc »

WB Staff wrote:MWD posted this info - the press release they mention and link to is the one posted above.

DVL Closed to Recreation Temporarily
Recreational activities at Diamond Valley Lake have been temporarily suspended because of a bloom of cyanobacteria—also known as blue-green algae—covering the lake. The bloom does not affect the safety or quality of Metropolitan's treated drinking water. The lake's condition will be reassessed on Tuesday, July 3.
Read the press release.
I read the press release and watched the channel 7 video. Duh! There is nothing about any reopen or reassessment dates. Where did you get the date of Tues. July 3 for the lake being reassesed?
WB Staff
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Re: Important News on Closure from DVL

Post by WB Staff »

As stated, MWD posted the info in the post you quoted.... and as explained... the press release they mention is the one that is already posted... their post said the information exactly as it reads including... "read the press release" and linked to old press release that we had already seen....


MWD posted this info - the press release they mention and link to is the one posted above.

DVL Closed to Recreation Temporarily
Recreational activities at Diamond Valley Lake have been temporarily suspended because of a bloom of cyanobacteria—also known as blue-green algae—covering the lake. The bloom does not affect the safety or quality of Metropolitan's treated drinking water. The lake's condition will be reassessed on Tuesday, July 3.
Read the press release.
Attachments
dvl.png
fastfiat
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Re: Important News on Closure from DVL

Post by fastfiat »

Algae

DVL Closed to Recreation Temporarily
Recreational activities at Diamond Valley Lake have been temporarily suspended because of a bloom of cyanobacteria—also known as blue-green algae—covering the lake. The bloom does not affect the safety or quality of Metropolitan's treated drinking water. The lake's condition will be reassessed on Friday afternoon, July 6.
Read the press release.
View the algae advisory sign in English and Spanish.
View the lake closure sign in English and Spanish.
Looks like the 6th will be the next assessment.
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Re: Important News on Closure from DVL

Post by WB Staff »

Updated on July 6 | Posted Notice Reads.... Link to press release is the one above dated June 21

DVL Closed to Recreation Temporarily
Recreational activities at Diamond Valley Lake have been temporarily suspended because of a bloom of cyanobacteria—also known as blue-green algae—covering the lake. The bloom does not affect the safety or quality of Metropolitan's treated drinking water. The lake's condition will be reassessed on Tuesday, July 10.
Read the press release.
WB Staff
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Re: Important News on Closure from DVL

Post by WB Staff »

diamond valley lake dvl closed due to algae.jpg
WB Staff
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Re: Important News on Closure from DVL

Post by WB Staff »

Received notice ... Diamond Valley Lake & Marina Re-opens ... Tomorrow
WB Staff
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Re: Important News on Closure from DVL

Post by WB Staff »

Metropolitan to Reopen Diamond Valley Lake to Recreation Friday (July 27) as Cyanotoxin Conditions Improve
Bloom has not affected safety, quality of Metropolitan’s treated drinking water

July 25, 2018 09:20 PM Eastern Daylight Time
LOS ANGELES--(BUSINESS WIRE)--Southern California’s largest lake will reopen to recreation Friday (July 27) after water quality tests confirmed the potential health effects of a large bloom of cyanobacteria, also known as blue-green algae, have diminished, Metropolitan Water District officials announced today.

“These blooms are naturally occurring. And with time they naturally dissipate. We have been regularly testing the lake water to ensure its safety, and we’re pleased that the cyanotoxin levels have decreased”

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Recreational activities, including boating, fishing and hiking, had been suspended at Diamond Valley Lake near Hemet in southwest Riverside County since June 21 after the cyanotoxins, produced by a bloom of cyanobacteria, were detected.

The blue-green algae bloom—one the largest ever experienced at the lake since it opened to the public for recreation in October 2003—produced large areas of green water and mats of green scum floating on the lake.

Blue-green algae blooms are common this time of year because of the warm weather. During the current episode, the bloom released cyanotoxins, which in high concentrations can be harmful to humans and animals, especially when ingested.

“These blooms are naturally occurring. And with time they naturally dissipate. We have been regularly testing the lake water to ensure its safety, and we’re pleased that the cyanotoxin levels have decreased,” said Dr. Mic Stewart, Metropolitan’s water quality manager.

Despite the improved conditions, Metropolitan advises Diamond Valley Lake visitors, particularly children, to stay away from any remaining algae or green material in the lake and on the shore. Visitors also are instructed not to let their service animals drink lake water or swim in the lake. Swimming and other body contact activities in the lake, Metropolitan’s largest storage reservoir, are always prohibited.

Any fish caught at the lake should be cleaned with tap or bottled water before cooking, and the guts of fish thrown away. Metropolitan water quality experts, however, assured the public that the quality of the district’s treated drinking water has not been affected.

Visit dvlake.com for more information about Diamond Valley Lake and lake conditions.

The Metropolitan Water District of Southern California is a state-established cooperative of 26 cities and water agencies serving nearly 19 million people in six counties. The district imports water from the Colorado River and Northern California to supplement local supplies, and helps its members to develop increased water conservation, recycling, storage and other resource-management programs.
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