Community Watershed Alliance
of the Middle San Pedro Valley
NEWSLETTER

 

…an evolving team of stakeholders
 working together to promote
the sustainable health of
our watershed.

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COMMUNITY
WATERSHED
ALLIANCE

of the Middle San Pedro Valley

 

E-UPDATES

VOLUME 2011 ISSUE 01
MAY
 
MARK YOUR CALENDAR

BENSON CITY COUNCIL HEARING COMMENTS ON REZONING OF APPROXIMATELY 2800 ACRES FOR POSSIBLE SOLAR FARM AND DATA CENTER

MAY 23, 2011 BENSON CITY HALL AT 7:00 P.M.

LAST OPPORTUNITY FOR RESIDENTS TO SHARE CONCERNS AND COMMENTS WITH ELECTED OFFICIALS

     In This Issue:

SCIENCE - LEGISLATION - PROJECTS
Updates Monthly at General Meetings - 4th Tuesday - Benson City Hall 120 W 6th St.

June -Summer Break Next Meeting 7/26/11

6:30 P.M


RESEARCH LIBRARY ONLY A CLICK AWAY

Featuring:
  • Research Reports on the Middle San Pedro and Adjacent Watersheds
  • Research Projects on the Middle San Pedro
  • On-Going Data Bases
  • Organization and Program Links

CWA IS A 501 (C) 3! Your donations and membership are now tax deductible.

Click here for your $15 membership form to help support our outreach programs!

Click here to visit our CWA website.

Click here to contact us.


HELPFUL RESOURCES:

1. SPECIFIC WELL INFOMATION

Entry into ADWR database has been re-designed for easier access to general well information.

Click here to enter well data base:

2.THE BOTTOM LINE:
Drought– Unusually dry weather over the past 30 days has caused short-term drought conditions to continue to expand and increase in severity across much of New Mexico and Arizona, particularly southern regions of both states.

Temperature– Temperatures across the Southwest have been hotter than average in the past 30 days, with most of New Mexico and southeastern Arizona experiencing temperatures more than two degrees warmer than average.

Precipitation– Scant precipitation fell during the winter in most of the Southwest—New Mexico experienced its 6th driest winter of the last 116. That pattern has been upheld in the past 30 days—virtually no precipitation fell in most of New Mexico, while Arizona experienced patches of wetter- and drier-than-average conditions.

Click here for the Southwest Drought/Climate Outlook – monthly report.

3. PRECIPITATION RECORDS

0.9 inches of rain observed to date in Benson. Normal approximately 2.42 inches.

Click here and scroll to the bottom of the chart to review Precipitation Records - Some communities out of alphabetical order.

4. WATERSHED-BASED PLAN

Click here to see maps of Benson Subwatershed for Vegetation Cover, Soil-types, Population Centers, etc.


TO CONTACT US:

Please do not respond to this email.

Click here to contact CWA.

OR

Mary McCool
(520) 609-2738

watergroup@aol.com

Tom Bousman
(520) 586-9035

We are on the Web!

Cwatershedalliance.com

Participants include:

BLM
USGS
NRCS
ADEQ
ADWR
USDA-ARS
Kartchner State Parks
Apache Nitrogen Products
Cochise County Government
Cochise County Cooperative Extensions
The Nature Conservancy

JOIN TODAY


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500,000 to 600,000 PV cells on 1600 acres

23-acre data server farm

The rezoning process to Light Industry will be the only opportunity that elected officials have to hear concerns, to discuss issues, and possibly to establish restrictions or conditions for the proposed solar farm and data center. On the 23rd, the City will conduct a public hearing to hear comments by the public regarding this project.

Once rezoning is approved, the P & Z Commision will be the authority to approve the Conditional Permit. If the project changes to another industry allowable under the zoning of Light Industry, or if the technologies/associated water demands change for the solar farm and data center, the Council will no longer have an opportunity to review the project.

View of PV Cells on 320 Acres for 48 MW facility in Boulder City - opened Dec. 2010

 

U of A Super Panels on 2 MW facility

Cloud Data Center

Although there is no guarantee at this time, the plan is to use photovoltaic (PV) technology which uses only 2% of the water used by solar thermal technologies.

In comparison, a 200 MW solar farm using the most common technology of parabolic troughs, can use 820,000,000 gallons of water a year for operations.

The current plan is to have the solar farm support a million-square foot data center. (Microsoft and Google typically build 500,000 square foot facilities or less).

The property owner has verbally stated he will encourage dry cooling even though the most efficient and cheapest way to cool such a facility is evaporative cooling towers. Again, there is no mechanism in place to assure this action.

Additional watershed issues include removal of ground cover to allow for economical installation. Since shade from arrays prevent growth from being re-established under the PV cells, erosion due to sheet flooding and strong southwesterly winds is a critical concern for this sloped area with unstable soils.

To learn more about solar farm installation, visit the following link to Guest Speaker Valerie Rauluk's presentation fromMay 17th and other technical reports solar technologies and water consumption.

Click here to go to special collection site or type in:

http://cwatershedalliance.com/pages/Solar%20Farm.htm

Click here for Board Pak for May 23rd Meeting.

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SAN PEDRO MONITORING PARTNERS GEAR UP FOR 2011 WET-DRY STUDY

BLM, The Nature Conservancy, CWA and other partners are meeting to finalize the logistics in monitoring nearly 175 miles of the San Pedro River from below the Mexican border to the town of Winkelman on June 18th.

Seven to eight teams of three volunteers each are being recruited for training in the Middle San Pedro area. Tentative training is set for June 14 so that standardized use of GPS units and forms produce quality data. The wet/dry mapping dataset will then be used to historically track the river’s health by monitoring the persistence of surface water during the driest time of each year.

CWA has coordinated the efforts within the Middle San Pedro for four years, extending the ten-year program developed in the Sierra Vista Watershed by BLM and TNC.

Equestrians, ATVs, and hikers will be on the river from approximately 5:30 A.M. to approximately 11:00 A.M.- traveling stretches of the river varying from 3 to 8 miles across lands to which property owners provide permission.

Here is your opportunity to join this year's efforts. Volunteer for parts of the river seldom traveled where perhaps deer, javelina, teal, turtles, minnows, and lots of fresh track can be spotted. From intermittent water south of Benson, to dry white sands to the north, it makes for a great morning outing. Call 609-2738 or email watergroup@aol.com today.

Click here to go to 2010 Map Links.

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MEMBERS PRIORITIZE TOPICS OF INTEREST

At the Annual Meeting held in January 2011, the CWA Steering Committee asked its membership to provide direction for this year. Members were asked to identify and prioritize topics for which they would like more information.

The following list was compiled and experts are being identified in each area. The Steering Committee is now making contacts to schedule Guest Presenters for the remainder of 2011.

The first item on the list ranked the highest. The remaining nine are not in ranked order.

Industrial Park – Water Usage
St. David Cienega
Rainwater Harvesting
Hydrological Study – In-depth Results/Modeling
Ecoli Study
Stormwater Policies
Invasive Species
Arsenic
Routine Well Maintenance
Update on Water demands / reclaimed Water – wastewater treatment plant

The above list is dynamic - changeable depending upon new legislation, technology, management strategies, challenges, etc. impacting our watershed. Please contact us with your ideas.

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ADJUDICATION MOVES FORWARD

A three-day Evidentiary Hearing has been scheduled to address submitted Objections to the Arizona Department of Water Resources' Subflow report of June 30, 2009 and ADWR's subsequent report of January 31, 2011 addressing submitted objections to their first report.

AUGUST 24, 2011

Click here for links to related documents and visit ADWR for many more!

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