Friday, November 22, 2013

Non-drought conditions declared Tuesday Nov. 19, 2013

Drought Status: No Drought (declared Tuesday November 19, 2013)
Barton Springs: ~89 cfs (10-day average)
Lovelady: 480.2 ft-msl (appears to be leveling off)
From the press release:
The Barton Springs/Edwards Aquifer Conservation District’s General Manager has declared a No-Drought condition for the aquifers within the District, effective immediately. The declaration comes after a wet September that saturated soils, then record-setting rainfall in October that caused runoff to area creeks which swelled beyond their banks allowing substantial recharge to the aquifer. One of the area’s two groundwater drought indicators, the water level in the Lovelady Monitor Well, has been rising steadily since the storms in mid- and late-October. On Sunday, November 17, the water level in the Lovelady Well crossed above the District’s drought threshold, a rise of over 19 feet in about a month. The other drought indicator, sustained flow rate at Barton Springs, moved above its threshold after the precipitation events in mid-October and has remained there.  Both indicators need to be above their designated thresholds – and currently are – to emerge from drought.
The District declared a groundwater drought and has been enforcing mandatory water-use restrictions since November 15, 2012, just over a year ago. While the aquifer has received substantial recharge and has passed into No-Drought status, it is still below average water storage capacity.  “The water level at the Lovelady well is still 22 feet below average, but the rapid recharge caused by the recent storms has greatly improved groundwater conditions around the District,” said Robin Gary, Public Information Coordinator.  Groundwater users are encouraged to maintain conservation practices, but mandatory water use restrictions are lifted. 
Brian Smith, Aquifer Science Team Leader, stated that, “These exceptional rain events in October fell over parts of the Edwards Aquifer recharge and contributing zone, but the western parts of the contributing zone received only moderate amounts of rain, so we are not likely to see flow continuing in the creeks for an extended period of time.  Without significant rain this fall and winter the aquifer could return to drought status by late winter or spring.”
The District’s General Manager, John Dupnik, offered this reminder stating that, “Despite the exceedingly wet conditions this fall, it is important that groundwater users not forget about the preceding summer months during which severe to extreme meteorological drought gripped the area, and as a consequence, caused water levels in the aquifer to plummet to close to Stage IV Exceptional Drought conditions.” Even in No-Drought status, end users are encouraged to continue to conserve.  Conserving water can prolong the time spent out of groundwater drought and protect water levels and springflow at Barton Springs.

Thursday, November 14, 2013

Aquifer on verge of non-drought conditions

Drought Status: Alarm Stage II
Lovelady: 476.23 ft (and rising)
Barton Springs: 86 cfs (89 cfs 10-day average)*
*based on manual measurements and estimates

The Drought Status is on the agenda at tonight's Board meeting. Barton Springs is already above its drought indicator thresholds, and it is only a matter of days before the Lovelady well is similarly above its thresholds. Board members could elect to declare non-drought conditions in the near future.

Tuesday, November 12, 2013

November Aquifer Update

Drought Status: Alarm Stage II (but likely will exit drought in the next week); the drought status can only be changed by the direction of the Board of Directors.

Lovelady: 475.76 ft-msl (and rising about 0.5 ft/d)
Barton Springs: Data still unavailable from the USGS, but manual measurements we've made recently put it near 60 cfs.

Synopsis: The wet September and the two rain bombs we received in October (wettest October ever at Camp Mabry!) has brought the Aquifer out of Stage III and into Stage II (Board changed on 10/24/13). The substantial recharge from these rains provided enough moisture to provide sustained creek and river flows in the area--thus providing sustained recharge. For example, Onion Creek is flowing nearly 80 cfs today, nearly all of that becomes recharge. Thus, we expect both our drought indicators (Lovelady and Barton Springs) to be above their respective drought thresholds by early next week). The Board meets this Thursday (11/14/13) and could take action given the rising trends.

A good summary of the impact of recent rains can be found in our latest newsletter: HERE