At this point staff estimates that approximately 3 acre feet of storage was added to the pond and about 2.5 acres of spray fields were added to the system. To give you an idea of what an acre foot is Manger of Engineering and Planning Gene Mancebo said an acre foot as about 325,851 gallons of water. Now, a typical home is assumed to discharge 200 gallons of wastewater into the collection system daily and the Agency assumes that it must store that water for approximately 6 months during the wet season and then dispose of that treated wastewater during approximately 6 months during the dry season. Mancebo said in theory, 3 acre feet of storage is adequate for about 27 homes. But there is a catch: staff must consider that they currently have inadequate storage and disposal capacity for the existing customers. The State requires that wastewater systems are designed for 100 year rain events which are determined by the state to be 31.1 inches per year. The state also requires that systems maintain 2 feet of freeboard in the storage reservoir which is about 6 acre feet. During the course of the analysis of the Camanche wastewater situation staff looked at the recent wet years, which included 2005 and 2006, to see how recent improvements could have helped had they been in place at that time, said Mancebo. In 2005 the total rainfall was measured at 25.54 inches and the agency spilled 900,000 gallons (or approximately 2.76 acre feet) of water at the time.
In 2006 they recorded 34.30 inches of rain
and estimated a released of 3 million gallons or 9.2 acre feet of treated
effluent. Since this exceeded the 100 year rain event the Agency was not fined
for this spill. Mancebo point out however, that the Agency should have
had additional 9.2 acre feet of storage to avoid future spills, in addition to another
6 acre feet for freeboard. Therefore, staff believes that there is not enough
capacity added to allow additional connections at this time. Staff recommended to the Board on Thursday the
continued suspension of applications until either adequate capacity is added to
meet their requirements or a new treatment plan and disposal system is installed
to provide adequate capacity, leaving about 27 property owners with plans in
development in limbo, some have been waiting for years Abercrombie said
that the AWA is working on potential solutions to the wastewater crisis. Staff
has looked into a plant on the north end of the Camanche area on EBMUD
property. He said several conversations have indicated that they may be able to
purchase a 5-10 acre parcel for a treatment plant. Also, discussions with a
Rancher have indicated that he may be willing to accept treated wastewater for
irrigation purposes. Abercrombie stated that although it appears promising
staff has to complete analysis and if
found to be adequate “it would
probably take at least 2 years to get permit, engineering, and construction
done before we have any additional capacity,” said Abercrombie. Also a
huge concern for the board and public was who pays for the treatment plant
which is guaranteed to cost millions? Abercrombie said they have a small
community grant for about 2 million dollars that they will be using, as well as
they are encouraging the County to apply for a separate small community grant
to help offset the costs.
The Rural Utilities Service (USDA) has shown some
interest in the project and grant monies may be available. “To make a long answer short we are
looking at a number of financing alternatives to try to minimize the rates to
existing customers because rates are already about 85-90 dollars a month,”
said Abercrombie. Also the agency is going to be implementing a conservation
program in the area. Director John Swift commented, “I don’t see how we can keep telling people another 2
years before we can do anything?” The entire board agreed. Abercrombie agreed but at that the same time
pointed out that regulations and compliance requirements are getting more
stringent and it is just not Amador
County that is facing
these sort of problems. Before the meeting was opened to the public Abercrombie
commented, “I know everybody
is frustrated with this, but if this was done right we would have 400 acre of
land disposal and a pond 3 times as big right up front. But the County
didn’t require it and allowed development to occur and now we are trying to fix
a problem that has been existing for many, many years.”