Date: Mon, 19 Jul 2004 15:35:41 -0700
From: "Laurie Taul" <LMT@rb2.swrcb.ca.gov>
To: <kpeyton@desilvagates.com>, <dchapman@desilvagroup.com>
Cc:  <fosalbo@oaklandnet.com>,<muzegu@oaklandnet.com>, <wmadison@oaklandnet.com>
Subject: Re: Hillside failure at Leona Quarry


David and Kent (DeSilva Gates):
We have been notified of various silty non-storm water discharges occurring at your site, since our last visit. Attached are photos of the latest incident, occurring on July 10, 2004. Although it appears that the cause was a broken water main located above your project, it's evident that your temporary holding basin and filtration system has been overwhelmed, resulting in a sediment-laden discharge to the downstream creek.

I assume that the City has been in contact with you regarding this incident; however, our office would like a detailed update from you regarding the corrective actions taken. Please respond to this request as soon as possible, including photos of the collection system and any other affected areas. You soon will be receiving a letter from our office which stipulates monitoring requirements, as we discussed during our June 8th site inspection.

Thanks, Laurie Taul


Laurie M. Taul
Environmental Scientist
Environmental Compliance and Enforcement Team
San Francisco Bay Regional Water Quality Control Board
1515 Clay Street, Ste. 1400
Oakland , CA   94612
ph: (510) 622-2508
fax: (510) 622-2460
email: lmt@rb2.swrcb.ca.gov