Monthly public programs Programs to community groups Annual - - PowerPoint PPT Presentation

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Monthly public programs Programs to community groups Annual - - PowerPoint PPT Presentation

Nov 02, 2023 151 likes •307 views

Founded 2002 in Prescott Approximately 200 members Promotes a sustainable water future in the Upper Verde River Basin and the Prescott Active Management Area by educating the public, encouraging citizen action, and advocating

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  • Founded 2002 in Prescott
  • Approximately 200 members
  • Promotes a sustainable water future in the Upper Verde River Basin

and the Prescott Active Management Area by educating the public, encouraging citizen action, and advocating responsible governmental decision-making

  • Monthly public programs
  • Programs to community groups
  • Annual candidate forum
  • Attend and monitor public meetings
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PRESCOTT ACTIVE MANAGEMENT AREA

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6 MILES

PRESCOTT ACTIVE MANAGEMENT AREA (PrAMA)

  • c. 2004
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PrAMA MONITORED WELLS SHOWING WATER-LEVEL CHANGE, FT 1994-2010 WATER-LEVEL CHANGE IN MONITORED WELLS 1939 TO PRESENT MOSTLY −50 OR MORE FEET

WELL 15-01-23-BAD

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270 280 290 300 310 320 330 340 350 360 370 DEPTH,

FT

1960 1970 1980 1990 2000 2010 4,612 4,602 4,592 4,582 4,572 4,562 4,552 4,542 4,532 4,522 4,512 WATER LEVEL ELEVATION, FT

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ANNUAL OVERDRAFT, ACRE-FEET CUMULATIVE OVERDRAFT 2012 = APPROX 252,625 ACRE-FEET

10,000

  • 325,000
  • 25,000
  • 125,000
  • 225,000

1985 1990 1995 2000 2005 2010

  • 20,000

20,000

  • 10,000

YEAR CUMULATIVE OVERDRAFT, ACRE-FEET

CUMULATIVE OVERDRAFT (MOSTLY 1995 THROUGH 2012): 252,625 ACRE-FEET; 4.9 – 8.4% OF AQUIFER STORAGE THROUGH 2017 (ESTIMATED): 331,663 ACRE-FEET 6.4 – 11.1% OF AQUIFER STORAGE YET MANY THOUSANDS OF NEW HOMES ARE “ON THE BOOKS”

PrAMA OVERDRAFT 1985-THROUGH 2012 AND 2019

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UPPER VERDE RIVER

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Paulden

USGS Streamga gage ge

Camp Verde Streamgage

VERDE RIVER BASIN VERDE RIVER:

  • ONE OF ARIZONA’S FEW

REMAINING PERENNIAL RIVERS

  • FLOWS ESSENTIALLY FREELY

FROM ITS HEADWATER SPRINGS FOR APPROXIMATELY 137 MILES TO HORSESHOE RESERVOIR

  • THEN ANOTHER 51 MILES TO

ITS CONFLUENCE WITH THE SALT RIVER NEAR FOUNTAIN HILLS

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SATURATED THICKNESS OF YOUNG SEDIMENTS AND VOLCANIC ROCKS

BIG CHINO VALLEY LITTLE CHINO SUB-BASIN

VERDE VALLEY

PAULDEN STREAMGAGE

VERDE VALLEY

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BIG CHINO VALLEY AND LITTLE CHINO SUB-BASIN WATER-LEVEL CONTOURS, FT. GROUNDWATER FLOW DIRECTION

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BIG CHINO VALLEY 4 THREATS TO THE UPPE VERDE RIVER

  • BIG CHINO WATER RANCH

8,000 AF/Y = 11 cfs

  • BIG CHINO VALLEY PUMPED STORAGE

PROJECT INITIAL FILL 27,000 AF/Y = 15 CFS ANNUAL 1,200 AF/Y = 1.7 CFS

  • POTENTIAL HOMES @ 4 HOMES/AF

75,OOO HOMES 18,750 AF/Y = 26 CFS

  • NEW “BIG” AG ____?
  • VS

ANNUAL ”LOW FLOW” AT PAULDEN GAGE 13,000 AF/Y = 18 CS 2010 THRU 2017; 11,000 AF/Y = 15 CFS IN 2018

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  • Drought-tolerant landscaping;
  • Residential, commercial-area, and public-land rainwater harvesting for

landscape irrigation, non-potable indoor use, groundwater recharge;

  • Minimizing groundwater exploitation by land-use management;
  • Purchase of development rights (conservation easements) on yet-

undeveloped tracts;

  • Storm-water management that supports aquifer recharge;
  • Regulation of groundwater pumping;
  • Formation of a Big Chino water-management district with authority to

manage groundwater in the Big Chino Valley so as to protect domestic wells and the base flow of the Verde River POTENTIAL MITIGATING STRATEGIES