HomeMy WebLinkAbout2010-0614 Documents Submitted
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Hi, Mike and Martha
I've been thinking about the two following questions for a
while and want to give you a preview ahead of tonight's study
session. Both involve having the AWAC group specify
'parameters' upon which the study is to be based (this is my
version of it). Part of which I'm pondering is whether both of
these parameters are policy decisions rather than something
that the AWAC group should decide - but beyond that issue are
the following questions:
1. Re: How much conservation does the City want?
This question seems very broad and unspecified yet picking a
number could have major policy implications. So, first of all,
what does it mean: reduce annual water usage by X gallons? or
Y percent...of what? Etc.
And, beyond that, I think there is a general feeling in the
community that we waste water, especially during warm weather -
but we waste it for a variety of reasons. We may be used to
treating water as free and plentiful. We may not have a way of
telling how much water we use. We may have landscaping that
wasn't planned to be frugal in its use of water but would be
expensive to change. We may have inefficient irrigation
systems. We may feel it's our right to use as much water as we
want if we're willing to pay the price.
How in that complex web of issues is a citizens committee
supposed to take a position, especially without knowing all the
ramifications of picking a particular number? Are we, in
effect, going to outlaw lawns? Are we going to provide support
to the citizens who really want to conserve (in terms of ways
of measuring their water use, for example)? Are we going to
change the laws regarding grey water use (or lobby the State to
do so)? .
2. What amount of redundancy do we want?
Here I'm concerned about two things.
First, this should not become a situation in which TAP
advocates and opponents feel compelled to take positions
because of their preconceived beliefs, i.e. make sure to set
the number high or low enough to achieve their goals with
respect to TAP.
Second, to me it seems as though this is a question that should
be asked_after_the overall system has been analyzed. For
example, don't we first determine how much water the city will
need in coming years and then look at how we deal with
uncertainty, variability, and contingencies - all of which will
have options and associated costs. At that point there will be
difficult trade-offs, not just costwise but operationally, for
example, if we use wastewater plant effluent how are we going
to control for contamination and won't effluent volume decrease
with conservation and with main supply levels, etc?
And ultimately we will have an overall cost projection going
forward about what it will take to keep a secure and sufficient
supply for the city over time so that we avoid digging
ourselves a financial hole. This is a big sustainability
point.
I can see as I try to think this out, that it makes the process
much easier to manage if you specify up front some of the
things you ultimately want to be able to vary - and maybe
that's what our planning people are trying to do - but taking a
position on conservation or redundancy has big implications and
how do we know that we're not preempting the Council from being
able to make key decisions by the assumptions the AWAC is being
asked to make now?
And, going back to the start: what does X% conservation
actually mean? And the same for redundancy? For example, if
we want Y% redundancy, is that of current winter water use
adjusted for projected population growth? Or is the answer
that we want to be able to make it through three years of
drought, a major fire in the watershed, and a significant
amount of vegetable gardening taking place within the City
limits?
Hopefully the above gives you an idea of why I'm concerned or
unclear about these aspects of the Water Plan process.
John
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