Hickey-Hydroscience Emails - GridleyLeaks

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Alvin.Davis From: 'ent: (0: Cc: Subject: Rob Dave Dauwalder Friday, September 16, 2011 2:40 PM Rob Hickey Alvin Davis; Bill Slenter RE: recommendation The polishing pond should be the first priority. If Rio Pluma or the City want to try the enzyme, this may help on the aerated pond. DAV~D DAUWALDER Senior Project Manager HydroScience Engineers IStrategic Water Solutions 10569 Old Placerville Road Sacramento, CA 95827 T: 916.364.1490 ext. 1371 F: 916.364.1491 www.hydroscience.com ----,--"---.-.---------~---~--. From: Rob Hickey [mailto:mickey@gfidley.ca.us] Sent: Friday, September 16, 20112:34 PM To: Dave Dauwalder Cc: Alvin Davis; Bill Slenter Subject: RE: recommendation It would seem that getting the ponds dredged is the best option at this point (?). Should we get both or just the polishing pond? Thanks, Rob From: Dave Dauwalder [mailto:ddauwalder@hydrosdence.com] 5ent~ Friday, September 16, 2011 12:33 PM To: Rob Hickey Cc: Alvin Davis; Bill Slenter Subject: recommendation Rob Bill just left you a voicemail regarding this recommendation. At this point, Alvin has sufficient documentation to believe Rio Pluma has violated their discharge permit in the following two major ways: ~ changing the TSS sampler code and accessing the TSS sampler; and ~ collecting and storing TSS samples themselves versus the permit requirement that only the City and certified lab control the chain of custody Thus, the data from Rio Pluma is not reliable or valid, as documented in City acquired grab sampling. Routinely, Rio Pluma has exceeded their discharge limit of 200 mgll for TSS. This week the City has again locked down the sampling equipment and has taken control of their chain of custody. In order to protect the City from potential violations of the City's discharge permit and possible fines, we recommend that a Notice of Violation be issued to Rio Pluma as soon as possible. This will serve three main purposes: 1
~ it will show the RWQCB that the City is doing everything it can in order to comply with the City's discharge permit; ~ it will form a basis for documenting any future expenses incurred by the City to deal with the excess sludge at the WWTP that should be reimbursed by Rio Pluma; and ~ it will give Rio Pluma an opportunity to work with the City as well as on their own to solve this problem in the best manner, without any RWQCB fines or City surcharges. In an effort to get a cost estimate for the removal of the accumulated solids, a representative from Synagro is in the area today and I have recommended to AI that he stop by to help develop an estimate. We are also looking at getting additional estimates from other responsible solids handling companies. DAVID DAUWALDER Senior Project Manager HydroScience Engineers I Strategic Water Solutions 10569 Old Placerville Road Sacramento, CA 95827 T: 916.364.1490 ext. 1371 F: 916.364.1491 www.hydroscience.com 2
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Hickey-Hydroscience Emails - GridleyLeaks

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