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Dumping in Permanente Creek

Original post made by Susan Hong, Another Palo Alto neighborhood, on Mar 8, 2011

The Los is looking to form a citizen-led group to perform water quality measurements on Permanente Creek.

Lehigh cement quarry, located in Cupertino, received a notice of violation on February 22 from the for dumping millions of gallons of excess water into Permanente Creek. The water may contain contaminants, according to a council memo. Lehigh’s excess water drainage could negatively affect Los Altos by causing extra repairs of storm drain lines, the memo said.

Permanente Creek flows through Los Altos, and through Heritage Oaks
Park, a property which the city of Los Altos owns.

The Santa Clara Valley Water District will also have to periodically remove sediment from the Permanente Creek bed. The extra maintenance will add to the cost of water, according to a council memo.

Comments (2)

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Posted by Susan Hong
a resident of Another Palo Alto neighborhood
on Mar 8, 2011 at 7:31 am

The Los Altos City Council will discuss forming a citizen-led group to perform water quality measurements on Permanente Creek. This is tonight at 7 p.m.

I know some folks in Palo Alto were concerned about seeing sludge bubbles in the creek recently.


Like this comment
Posted by Marie
a resident of Midtown
on Mar 8, 2011 at 12:45 pm

Marie is a registered user.

The city of Mountain View got back to me about the bubbles I saw, which are apparently a result of turbulence when water was flowing through a narrow pipe. However, there was no explanation for the later sheen on the water and brown scummy bubbles on the side. They encouraged me to continue reporting any signs of pollution as they are concerned about drainwater pollution.

I plan to keep looking and posting on the Facebook page of the Stevens & Permanente Watershed Council.

Web Link

The Stevens & Permanente Watershed Council is a citizen action group that is already working to improve the watershed and monitors water chemistry at eight sites. I hope the new group will coordinate with this existing group.

Web Link

I'm looking forward to finding out more about both groups.


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