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s obi-o11-13 October 2, 1995 Stena Vdktd1 SCD a.. San Joaquin County Environmetal Health Department P.O. Box 388 �n Stockton, CA 95201-0388 Peter Darrah Stockton Boat Works -a 3830 Portsmouth Pt. Stockton, CA 95219 (209) 465-6070 Dear Mr. Mindt: RE: Site approval SA-95-29 for two new docks at our houseboat marina. I'm writing in response to our conversation last week. Hopefully I can provide you with a clear description of our sewage situation. Let me start by saying that we have a 24 acre parcel with a houseboat marina on one side of it. There is one house on Rainier Avenue which belonged to my grandparents. It has it's own permitted septic tank. Then there is the marina which houses 13 boats, 8 of which are liveaboards. There is also a small cottage which has a bathroom. The cottage has a 1000 gallon septic tank (permit 76-537). Our pump out station (permit 001619) feeds into the cottage's septic tank. In terms of flow rates, the cottages septic tank has far, far more capacity than would ever be used by the cottage or the pump out station. Only two of our liveaboards even use the pump out system, and they only generate about 50 gallons of sewage a month. The one bathroom in the cottage is used by the occupants of two of the houseboats, and generates very little flow. In terms of the two new docks, they will house non-liveaboards. People who don't live on their boats typically come once or twice a month and generate very little sewage. People typically pump their tanks while they are getting gas. We would also be happy to let them use our pump out facility, which would not be effectively impacted by two more boats. We've covered the house, the cottage, and the pump out facility. Let me give you the detail on the boats. Everyone dumps their grey water straight into the river. As far as I know, every boat everywhere just dumps their grey water. It's the norm for boats. Given that, our main concern is sewage which is contained in different ways depending on the boat. I include here a chart showing which system is used by which boat and a description of each system: