Great Oaks Water Company has been providing public water utility service to the Blossom Valley - Santa Teresa - Edenvale - Coyote Valley-Almaden Valley area of the City of San Jose since the early 1960's.  Our dedication to providing the highest quality water, best customer service and the lowest rates continues to this day.  With over 20,000 customers and a dedicated staff of 17 employees, Great Oaks is recognized as one of the most efficiently run utilities in the state.

Customer Notice:
Activation of Voluntary Conservation Measures Under Rule 14.1


To read the 2012 Consumer Confidence Report (CCR), please click here.

Hard Water May Protect Against Heart Disease


As most of our customers know from reading our Annual Newsletter, our water comes naturally from deep wells and has a relatively high hardness factor.  Hardness is determined primarily by the amount of calcium and magnesium in the water.  It is expressed in milligrams per liter of calcium carbonate (or often as grains per gallon of calcium carbonate).  1.0 gr/gal = 17.1 mg/l. The water from Great Oaks Water Company wells has a hardness of about 18 gr/gal.  Now we learn that there may be hidden benefits in this aspect of our water.

Please check out this interesting article:

Hard Water is good for your Heart


Below are a few features from our 'Most Frequently Asked Questions' list.  We will be changing these from time to time, so be sure to check back with us once in a while.

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Urban Water Management Plan

Please Note:  Great Oaks Water Company is NOT responsible
for any lost cash payments dropped off in the Night Drop. 
Thank you.     Management


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