Pumps to Return to South Pool

Tuesday, April 1st is deja vu time as San Angelo's City Council considers reinstalling Gajeske's pump system to move water from the South Pool at Twin Buttes Reservoir.  The city can pump to the North Pool via the equalization channel or over the dam to the old South Concho River bed which leads directly to Lake Nasworthy.  The three pumps can move 75 acre feet a day with gravity flow through the EQ channel, but only 25 acre feet a day if they go over the dam.

The city council background packet implies the pumping would go South Pool to North, taking only one month to move the South Pool's about 2,700 acre feet (current roughly 2,900 acre feet less the 200 acre feet that pumps can't get).  Then the pumps would be moved to the North Pool to pump that body, currently at about 1,900 acre feet ( and not pumpable using the city's last pumping arrangement).

Dead storage for the North Pool is elevation 1885 feet.  It currently sits at 1882.4 feet. 

This makes moving the water through the Equalization Channel a two stage pumping operation.  Stage one they've done several times, thus city officials have some idea as to the potential impact.  Due to seepage and evaporation losses the combined pools would be about 3,900 acre feet (that's without runoff rains).

The city successfully pumped the North Pool down to 1882 foot elevation, but not lower. After draining the South Pool it will be interesting to see where the City locates the intake piping to tap the remaining water  in the North Pool. They may need a lot of piping.

Of the current 4,900 acre feet, the city will be lucky to get 2,000 acre feet for its municipal water supply when all is said and done.  Lord knows, we need it and more.

Update 3-31-14:  Myself and another windsurfer had fun at the South Pool yesterday.  I was on a 4.5 square meter sail and a 110 liter board.  It was great in the gusts and a bit of work in the lulls.  I was worried about the water temperature, but was find with a warm shirt and convertible wetsuit.  The water was up slightly at 1921.25 feet elevation.   The next month and a half may be prime sailing time, i.e. pre-pumping. 

City's Twin Buttes Water Rights Under Legal Challenge

Law360 reported:

Houston (February 19, 2014, 4:32 PM ET) -- A conservation group asked the Texas Supreme Court Tuesday to invalidate the city of San Angelo’s municipal water permit, arguing that state regulators should have more closely scrutinized the impact the permit would have on the environment and downstream users.

In a petition for review filed with the high court, the Concho River Basin Water Conservancy Association said that the Texas Commission on Environmental Quality should not have approved an amendment of the city’s existing water permit without first determining whether the change would unduly strain water supplies or adversely affect the rights of other water rights holders.

“Without requiring the proper [analysis], the commission amended the city’s water rights, stripping away existing special conditions designed to protect other water rights and the on-stream environment,” the petition said.

Concho — a nonprofit group formed to protect water rights tied to a tributary of the Colorado River — says that TCEQ should have considered how amending the city’s permit would impact the basin and others who rely on the water source under the Texas Water Code and state administrative law.

Because the city was not required by TCEQ to satisfy the so-called “no injury rule,” the permit amendment was improperly approved, Concho says. The Seventh District Court of Appeals also erred when it misinterpreted the high court’s decision in City of Marshall v. City of Uncertain and held that the TCEQ only needed to consider the public welfare, groundwater effects and consistency with state water plans before amending the permit, according to Concho.

“This error amplifies the commission's error in failing to acknowledge that its witness only provided an unsubstantiated and conclusory expert opinion that there were no adverse impacts caused by [the permit amendment] and did not perform the required no injury analysis,” the petition said.

And Concho says that the TCEQ should have compared the city’s original permit conditions with those of the amendment to conduct the appropriate analysis under the no injury rule. Instead, TCEQ took the “novel” position that a comparison was unnecessary because the amendment only operated to delete an outdated provision authorizing the city to store and release storm water, according to Concho.

TCEQ successfully argued to the lower appeals court that the state’s Water Rights Adjudication Act eliminated the distinction between “storm and flood flow” and “normal flow” of a river and that the city’s water permit amendment did nothing more than clarify its existing rights.

But Concho says that there is no case law to support TCEQ’s argument and notes that the Water Code and TCEQ’s own regulations still refer to the difference between storm flow and normal flow.

“It is incorrect that the Adjudication Act ‘did away’ with the normal-flood flow distinction for all purposes,” the petition said. “The appeals court failed to reach this issue and petitioner requests the court to grant this petition to address this issue, which is critical to the water law jurisprudence of the state.”

Concho contested San Angelo’s permit when the amendment was up for debate at the TCEQ, and sued in state court after the agency found the permit amendment would result in no adverse impact on other water rights.

The dispute revolves around water rights the city secured dating back to a 1960 permit that allowed the city to construct the Twin Buttes dam and reservoir and several subsequent amendments to the permit governing the amount of water San Angelo could draw down.

An attorney for San Angelo declined to comment Wednesday.  San Angelo is represented by Jason T. Hill, Martin Rochelle, Tom C. Massey and Timothy L. Brown of Lloyd Gosselink Rochelle & Townsend PC.

Concho is represented by Glenn Jarvis of the Law Offices Of Glenn Jarvis and Mary K. Sahs of Sahs & Associates PC.

The case is Concho River Basin Water Conservancy Association v. Texas Commission on Environmental Quality et al., case number 14-0028, in the Texas Supreme Court.

--Additional reporting by Jess Davis. Editing by Emily Kokoll

Twin Buttes Pumping to Return

Vendors have until March 12 to submit bids for pumping water from Twin Buttes.  Bid documents request a pump system capable of moving water from both the North and South Pools. 

No matter which route the city uses pumped water will need to cross long stretches of dry land.  Once again they'll be huge losses to seepage, thirsty vegetation and evaporation.

An addendum to the bid proposal stated the City plans to pump the South Pool down to elevation 1911 feet above sea level.  I don't think the city got that low last year when they used Option 3 and all three Gajeske pumps sucked air. 

The proposal seeks short term rental proposals to pump Twin Buttes water, likely in time for the May boat races.  As of now only the South Pool has water to give.