At Vallecitos, the health and safety of our community is our top priority. In order to minimize exposure and slow the spread of COVID-19, the District's lobby is closed to the public. Customers may still interact with Vallecitos staff via phone at (760) 744-0460 or by email.

  • Water bills can be paid in a variety of ways that do not involve visiting District offices, such as online billing or using our drop-box outside. 
    Learn more about payment options...
  • Water safety remains unaffected so customers can continue to use and drink water from their tap as usual.  Learn more...
  • Board of Directors meetings will be teleconferenced until further notice. Learn more...


About Us

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headquartersFor more than 60 years, Vallecitos Water District has been your water and wastewater specialists, providing water, wastewater, and reclamation services to San Marcos; the community of Lake San Marcos; parts of Carlsbad, Escondido and Vista and other unincorporated areas in north San Diego County.

Originally founded as the San Marcos County Water District in 1955 by a group of local citizens to answer the shrinking water table in the San Marcos and Twin Oaks valleys, the District was formed in accordance with Division 12 of the Water Code (sections 30000-33901 et seq.) to provide imported water from Northern California and the Colorado River. The San Marcos County Water District continued to grow as an independent, special district and in May of 1989, changed its name to the Vallecitos Water District.  

Today, with a new name and extended focus, Vallecitos Water District currently serves a population of more than 105,000 within its 45-square-mile boundary.  Learn more about the District's history by watching the video below.


Guided by a comprehensive Master Plan that looks ahead more than 20 years into the future, Vallecitos is committed to providing exceptional and sustainable services at the lowest possible cost.

Vallecitos Water District is governed by a 5-member Board of Directors. All are invited to attend the public Board meetings to learn more about the District. Meetings are held at the District's Administrative offices at 201 Vallecitos de Oro in San Marcos. More information.


Facts and Figures - As of June 30, 2018

Approximate population 
in Vallecitos' service area     
Square miles in service area            45.37

Number of employees

(*Funded FTEs per fiscal year budget - 
actual number of staff may be less)

Approx. population served by sewer

Water Statistics

Number of actively billed / permanent water meters
(Approx. breakdown of water meter connections)

  • Residential
  • Landscape irrigation
  • Commercial and industrial
  • Agriculture / other
  • 21,719





    Acre-feet of water delivered in fiscal year 2017 - 2018              15,384
    Operational Storage
    120.5 million gallons
    Pump Stations / Zones
    Miles of pipe (2" to 48")

    Sewer Statistics

    Total sewer accounts 20,607
    Lift Stations 4
    Miles of pipe (4" to 42")
    Vallecitos' capacity at
    Encina Wastewater Authority
    10.5 million gallons/day
    Average daily flow to Encina
    3 million gallons/day
    Recycling capacity at Meadowlark Water
    Reclamation Facility
    5 million gallons/day
    Average gallons of water
    recycled (reclaimed) at Meadowlark
    3.5 million gallons/day
    Mahr Reclaimed Water Reservoir Capacity 54 million gallons
    Reclaimed Water Wholesale Customers
    Carlsbad Municipal Water District &
    Olivenhain Municipal Water District
    Water Calculations and Statistics: 

    1 gallon of water = 8.34 pounds
    1 unit of water = 1 Hundred Cubic Feet (HCF) or 748 gallons
    1 average bathtub filled to the top holds 50 gallons of water.  
    On average, a single family home within Vallecitos' service area uses between 12 to 14 HCF per month.
    This equates to 8,976 to 10,472 gallons per month (roughly 1/2 to 2/3 of a small residential swimming pool).

    1 acre foot of water = 43,560 cubic feet or 325,829 gallons
    This equates to enough water to supply three families (with four people in each family) in Southern California.
    1 acre foot covers 1 acre (size of football field) 1 foot deep.

    Average cost for delivering one gallon of safe and reliable Vallecitos tap water to your home or business....
    still less than a penny!

    Vallecitos logo




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