Hickey-Hydroscience Emails - GridleyLeaks
Hickey-Hydroscience Emails - GridleyLeaks
Hickey-Hydroscience Emails - GridleyLeaks
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Alvin Davis<br />
'rom:<br />
Sent<br />
To:<br />
Cc:<br />
Subject:<br />
Rob<br />
Dave Dauwalder <br />
Friday, September 16, 2011 2:40 PM<br />
Rob <strong>Hickey</strong><br />
Alvin Davis; Bill Slenter<br />
RE:recommendation<br />
The polishing pond should be the first priority. If Rio Pluma or the City want to try the enzyme, this may help on the<br />
aerated pond.<br />
DAViD DAUWAlOER<br />
Senior Project Manager<br />
HydroScience Engineers IStrategic Water Solutions<br />
10569 Old Placerville Road<br />
Sacramento, CA 95827<br />
T: 916.364.1490 ext. 1371 F: 916.364.1491<br />
www.hydroscience.com<br />
from: Rob<strong>Hickey</strong> [mailto:rhickey@gridley.ca.us]<br />
Sent: Friday, September 16, 2011 2:34 PM<br />
To: Dave Dauwalder<br />
CC: Alvin Oavis; Bill Slenter<br />
~bject: RE:recommendation<br />
It would seem that getting the ponds dredged is the best option at this point (?). Should we get both or just the<br />
polishing pond?<br />
Thanks,<br />
Rob<br />
From: Dave Oauwalder [mailto:ddauwalder@hydroscience.com]<br />
Sent: Friday, September 16, 201112:33 PM<br />
To: Rob <strong>Hickey</strong><br />
Cc: Alvin Davis; Bi.1ISlenter<br />
Subject: recommendation<br />
Rob<br />
Bill just left you a voicemail regarding this recommendation. At this point, Alvin has sufficient documentation to believe<br />
Rio Pfuma has violated their discharge permit in the following two major ways:<br />
> changing the TSS sampler code and accessing the TSS sampler; and<br />
".. collecting and stonng TSS samples themselves versus the permit requirement that only the City and certified lab<br />
control the chain of custody<br />
.Thus, the data from Rio Pluma is not reliable or valid, as documented in City acquired grab sampling. Routinely, Rio<br />
Pluma has exceeded their discharge limit of 200 mgtl for TSS. this week the City has again locked down the sampling<br />
:quipment and has taken control of their chain of custody.<br />
In order to protect the City from potential violations of the City's discharge permit and possible fines, we recommend that a<br />
Notice of Violation be issued to Rio Pluma as soon as possible. This will serve three main purposes:<br />
1