Marin Municipal Water District Photograph of Mount Tamalpais watershed
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MMWD

The Marin Municipal Water District

Mt. Tamalpais and Corte Madera Creek 220 Nellen Avenue
Corte Madera CA 94925
415-945-1455

MMWD is a public agency that provides high-quality drinking water to 185,000 people in a 147-square-mile area of south & central Marin County.

 

Our Mission

To manage our natural resources in a sustainable manner and to provide our customers with reliable, high-quality water at a reasonable price.

Fact Sheet

(Click here for a printable version of our fact sheet.)

  SERVICE AREA

 

 Square miles: Ten towns and cities plus unincorporated areas of Marin

 147

 Population

 185,000

 Service Area Map

 

  WATER SUPPLY

 

  Watershed lands (acres)

  21,250

  Number of storage reservoirs

  7

  Total reservoir storage capacity
            Acre-feet*/Millions of gallons

  79,566 / 29,927

  Average yearly rainfall (inches at Lake Lagunitas)

  52

  Average yearly runoff, less losses**
            Acre-feet/Millions of gallons

  61,415 / 20,012

  Water imported from Russian River (avg. annual, acre-feet)

  7,700

  Operational yield (acre-feet)***

  28,500

 

 

  WATER USE

 

  Service connections

  61,266

            Residential/Other

  55,769 / 5,497

  Maximum annual use (1987)
            Acre-feet/Millions of gallons

  33,100 / 10,785

  Average annual use over 10 years (fiscal years 2001-2011)
            Acre-feet/Millions of gallons

  29,200 / 9,500

 

 

  FINANCE

 

  Budget 2011-12 fiscal year revenues (not including fire flow fund)

  $ 60,583,164

  Budget 2011-12 fiscal year disbursements (not including fire flow fund)

 

 Operations (not including depreciation & amortization)                                                      $59,191,396

 

            Debt service                                           $ 7,212,591

 

            Capital purchases and projects               $15,906,424

 

  Total budgeted 2011-12 fiscal year disbursements

  $ 82,310,411

  Utility plant – net book value

  $302,554,662

 

 

 DRINKING WATER FACILITIES

 

  Miles of pipeline

  889

  Number of storage tanks

  124

  Total tank storage capacity (millions of gallons)

  82

  Number of pump stations

  90

  Number of potable water treatment plants

  3

  Maximum daily treatment plant capacity (millions of gallons)

  59

  Average daily treatment plant production (millions of gallons)

  25

 

 

  RECYCLED WATER FACILITIES

 

  Miles of pipeline

  24

  Number of storage tanks

  3

  Total tank storage capacity (millions of gallons)

  1.9

  Number of pump stations

  5

  Number of recycled water treatment plants

  1

  Maximum daily treatment plant capacity (millions of gallons)

  2

 

 

*One acre-foot is equivalent to 325,851 gallons, enough water to cover one acre (about the size of a football field) to a depth of one foot, or to supply three families for one year.
**Due to evaporation
*** Amount of water that can be supplied in all but the driest years          

Rev. 1/2012

Meet MMWD

For more information about MMWD, see our booklet, Meet the Marin Municipal Water District.

Meet MMWD

 

 

 

   
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