Dam on the upper San Jaoquin

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ERIC
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Re: Dam on the upper San Jaoquin

Post by ERIC »

rlown wrote:Eric,

What are your thoughts on groundwater banking w/o monitoring/metering Agriculture pumping? Seems we have that with above ground water feeds today. Not so much with the farmers freely pumping groundwater.
Because of my job I have to be careful about what I say publicly about any of this (sticking to what I know to be facts). I can only point out that A) groundwater banking activities are already monitored and reported, and B) the Groundwater Sustainability Act of 2014 requires that all pumping (agriculture included) must be metered within the schedule set forth by that legislation.
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Re: Dam on the upper San Jaoquin

Post by Wandering Daisy »

Water infrastructure evens out the effects of flood/drought cycles that are normal for California. Read your history. Before these structures, for example, Sacramento flooded regularly. This is a complex issue. There are good dams and bad ones; good water banks and bad ones. I wrote feasibility studies for large water projects before I retired, and the general public has little idea of what goes into these projects. The Sierra is nature's "dam", snowpack, holds water and releases it slowly. Global warming is putting this essential natural process at risk. Be glad that someone is actually trying to figure out how to mitigate this problem with water infrastructures. A few more dams and water banks are actually needed. In drought periods there is no "cheap water". Farmers pay a premium for water in a drought and sustain large economic losses. I do not buy that they are the "problem" or evil.
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Re: Dam on the upper San Jaoquin

Post by rlown »

never meant to imply that farming is evil. Pretty much the life blood of California. Just wanted to see if the amount pumped from their wells was monitored. If we pump the aquifer back up only to see it depleted again in an unregulated fashion, that would be bad.

I live in an unincorporated section of Sonoma Cnty, and everyone here is on a well. All w/o meters.

Whatever the approach, more "storage" is needed, especially if we keep building the sprawl of housing like we seem to be doing. Even if it's personal storage systems built into the housing or recycled water systems for reuse.
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Re: Dam on the upper San Jaoquin

Post by sparky »

Is reclaimed water used for irrigation of crops at all?
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Re: Dam on the upper San Jaoquin

Post by rlown »

There was a story on the local paper discussing the concept:

http://www.pressdemocrat.com/home/26781 ... ave#page=1" onclick="window.open(this.href);return false;

We're doing it here.

from page 2 of the article:
To preserve ground and surface supplies, the county has also been expanding its storage and delivery of recycled water for growers and ranchers.
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Re: Dam on the upper San Jaoquin

Post by ERIC »

sparky wrote:Is reclaimed water used for irrigation of crops at all?
Yes.

Ironically, the Central Valley has been recycling its water for decades historically out of necessity (not a lot of options for where to dispose of it) while this is a relatively new turn of events for coastal communities (traditionally disposed of either directly or indirectly to the ocean). Of course I'm generalizing, but on the whole this is what has been the case. Most of the medium to large communities in the CV have exchange/sale agreements with water/irrigation districts for use of the reclaimed water. Its used in various ways - most commonly for groundwater recharge or for direct irrigation purposes. But you're beginning to see reclaimed water used in other ways as well. Bottom line, increasing water scarcity is forcing all California communities throughout the state to implement more efficient ways of reclaiming treated water. It's a very good thing.
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Re: Dam on the upper San Jaoquin

Post by ERIC »

Wandering Daisy wrote:Water infrastructure evens out the effects of flood/drought cycles that are normal for California. Read your history. Before these structures, for example, Sacramento flooded regularly. This is a complex issue. There are good dams and bad ones; good water banks and bad ones. I wrote feasibility studies for large water projects before I retired, and the general public has little idea of what goes into these projects. The Sierra is nature's "dam", snowpack, holds water and releases it slowly. Global warming is putting this essential natural process at risk. Be glad that someone is actually trying to figure out how to mitigate this problem with water infrastructures. A few more dams and water banks are actually needed. In drought periods there is no "cheap water". Farmers pay a premium for water in a drought and sustain large economic losses. I do not buy that they are the "problem" or evil.
While I personally agree with what you've said, I'll add that the rhetoric oozes thick from all water interests out there. Take everything you all read with a grain a salt because IMO few if any articles or sources of information are without bias - especially right now when emotions are running so high.
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Re: Dam on the upper San Jaoquin

Post by Cross Country »

I believe what Eric said to be soooooo true. I need to point out that I am neither educated formally nor informaly in politics. However what little I know of politics tells me that Eric is correct.
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Re: Dam on the upper San Jaoquin

Post by HikeSierraNevada »

Prop 1 passed by a healthy margin. It's $7.5 billion, not $14 billion as stated in an early post. $2.7 billion for water storage, but the way its written, don't worry this will lead to a lot of new dams. It specifically won't pay directly for water supply storage. The wording separates "public benefit" from "private benefit" and only funds the costs of a project relative to the "public benefits." And no more than 50% of any project. So this is a cost-sharing arrangement that will not fund any project in its entirety.

Strangely, water supply is not considered a "public benefit" by this proposition. Whatever part of a dam or project that is allocated for water supply, that cost has to be paid for by the end user, even if they are a public agency like a city. I find that an odd distinction, but I get the concept. If you want the water, you have to pay to develop the storage. The state will pay for costs associated with environmental benefits, recreation benefits, flood control control benefits, groundwater recharging benefits, but not for new surface water supply. So this will help get water infrastructure projects going, but it won't pay for developing more water supply directly. Theoretically, the entire $2.7 billion could go for dry flood control dams and environmental habitat without actually increasing water supply one drop. I don't think it will happen that way, but it illustrates the way this is prop is worded.

The end result will probably be a lot more groundwater recharge, maybe one large new dam, and likely some smaller dams will be built or raised. The other funds (besides the $2.7 billion for water storage) will help with water conservation, groundwater monitoring, fixing leaky pipelines, and other water projects that will help conserve or clean up existing supplies.

So overall, Prop 1 will help, but don't worry about too much money going for new dams. It's just a drop in the bucket, a bucket that people don't appreciate until its empty.
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Re: Dam on the upper San Jaoquin

Post by Troutdog 59 »

Like Eric, I have to be careful what I say about this issue due to my line of work, but the White Elephant in the room of discussion about water distribution that nobody wants to talk about is do we have enough water in this state for all of those who want to use it? Water is not infinite in supply and while I dont oppose new storage projects, especially groundwater banking, would there have been water to store behind this new dam this year in the third year of a drought? The answer is no, it would be dry now as well. Again, I'm not persoannly opposed to new dams, but the beliief that one water storage project will cure all our water ills is nothing but folley.

Regading recycled water usage, its done all of the time and its use is increasing in these scarce water times.
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