The Santa Clara Valley Water District is in charge of recharging local groundwater basins and storing, importing, treating and supplying safe, clean water to 13 water companies in the county. You most likely get a water bill from one of these companies, all which have different rates and ways to calculate your usage.

Use the example bill to better understand your household's water consumption. Click on a question below to see what you can learn.
  • How much water am I using?
  • How are the costs for water usage calculated?
  • What is CCF and HCF?
  • What if I have a question about my bill?
  • What's my account number?
  • What period does this bill cover?
  • How long do I have to send payment?
  • How is "Total Amount Due" calculated?
   
   
   
   
   
www.calwater.com
1720 North First Street, San Jose, CA 95112-4598
Main number: (408) 367-8200
Billing: (650) 917-0152

Los Altos Office - 949 B Street, Los Altos, CA 94024
Main number: (650) 917-0152
www.cityofgilroy.org
7351 Rosanna Street, Gilroy, CA 95020
Main Number: (408) 846-0420
Billing: (408) 846-0420
www.greatoakswater.com
20 Great Oaks Blvd., Suite 120, San Jose, CA 95119
Main number: (408) 227-9540
Billing: (408) 227-9540
www.ci.milpitas.ca.gov
455 E. Calaveras Boulevard, Milpitas, CA 95035
Main number: (408) 586-3000
Billing: (408) 586-3100
www.morgan-hill.ca.gov
17555 Peak Avenue, Morgan Hill, CA 95037
Main number: (408) 779-7271
Billing: (408) 779-7221
www.ci.mtnview.ca.us
500 Castro St, P.O. Box 7540
Mountain View, CA 94039
Main number: (650) 903-6317
Billing: (650) 903-6317
www.cityofpaloalto.org
250 Hamilton Ave., Palo Alto, CA 94301
Rebates: (650) 329-2241
Billing: (650) 329-2161
www.purissimawater.org
26375 Fremont Blvd., Los Altos Hills, CA 94022
Main number: (650) 948-1217
Billing: (650) 948-1217
www.sjmuniwater.com
3025 Tuers Road, San Jose, CA 95121
Billing: (408) 535-3500
www.sjwater.com
110 W. Taylor St., San Jose, CA 95110
Main/Billing: (408) 279-7900
Fax: (408) 279-7917
www.santaclaraca.gov
1500 Warburton Avenue, Santa Clara, CA 95050
Main number: (408) 615-2200
Billing: (408) 615-2300
www.sunnyvale.ca.gov
456 W. Olive Ave., Sunnyvale, CA 94086
Main number: (408) 730-7500
Billing: (408) 730-7400
www.stanford.edu
327 Bonair Siding, Stanford, CA 94305-7270
Main number: (650) 723-2300
Billing: (650) 723-4221
Use this converter to see how units translate to gallons. Select your water company above, then enter your units used.
Units
Total gallons
Enter the number of days in your billing cycle. Then enter the number of people in your household.
Days in billing cycle 
People in household
Here are your water usage results.
Gallons used per day 
Gallons used per person per day
Note: A water-efficient home uses less than 100 gallons per person per day. The county average is 100-125 gallons per person per day.
For tips on how to conserve water, click here.
For questions about your water bill or other service-related questions, call the number listed, usually near the top of your bill. If your bill does not list a number, find your water company on the scroll down menu on the left to access their contact information.
Your account number can be found under the "Account Information" section of your bill. It's important to have your account number handy when calling with any questions.
Tip: Make sure your account number appears on any payment submission.

All water companies should include a start and end date on their bills. These dates, found under the "Service From" to "Service To", document the period for which you are being charged. Some water companies issue a water bill once every two months. Others issue a bill on a monthly basis.
"Days in billing period" will tell you the exact number of days for which you are being billed.
All bills have a "Payment Due By" date. Most water companies will impose a late fee or a finance charge on your next bill if payment is not received by the noted due date.
All water bills will include a section that breaks down all the costs for the billing period. It's seen as "Bill Details" in this example, and can be a combination of water usage fees, meter or service charges, sewer fees, various taxes, and even costs associated with trash disposal.
Water Usage: Most water companies have a tiered structure for calculating water usage. This means, they charge a specific rate for using up to a certain number of units. If you exceed the allowed number of units in the first tier, you get bumped up to the next tier, usually resulting in increased rates. The number of tiers will vary depending on the water company, and some don't have a tiered billing structure at all. If you're not sure, contact your water company. A complete list of water companies and their contact information is provided in the scroll down menu on the left.
Meter or Service Charges: This fee is to cover fixed costs related to water operations and maintenance. The fee can vary based on the size of your meter and the number of days in the billing cycle.
Sewer Fees (if applicable): These charges are for the operation and maintenance of the wastewater treatment plant. It can be a flat or a variable rate, depending on the water company.
Trash Fees (if applicable): This fee is for the rental of garbage containers and for the weekly pickup and disposal of garbage. The amount is typically based on the size of the container.
Each water company has assigned a specific rate per unit of water. One unit translates to 748.5 gallons (with the exception of the city of Gilroy and Stanford University, where 1 unit = 1,000 gallons).
Tiered billing systems allow a certain number of units at a set rate. Once you exceed the number of units allowed in any tier, the remaining units get bumped up to the next tier and rate. Rate per unit of water will vary depending on your water company.
Your bill will have a total number of units used (broken down by number of units used in each tier) and at what rate each unit is billed.
Tip: Not all water companies bill based on a tier system. Unsure about how your water company bills you for your water usage? Find your water company on the scroll down menu on the left and visit their site or call them for more information.
The "Water Usage" section of your bill is what you should be paying the most attention to.
On most water bills, you'll see a comparison of how much water you're using compared to the previous billing period and/or compared to the same period the year before.
Some water bills even include a graph, comparing your water usage to a prior year and/or a city average.
One thing to be checking for is a significant jump, or spike, in your household's water consumption. This typically means you have a leak.
Tip: Check this bar—and your toilets. Studies have shown that the majority of leaks are due to faulty toilets. If you hear your toilet flushing in the middle of the night, your toilet flapper is leaking. So keep a look out! It may be time to replace that toilet with a water-efficient one.
CCF and HCF are used interchangeably and mean one hundred cubic feet. This is the "unit" of water that most water companies use when calculating how much you owe them.
One CCF (100 cubic feet), or one unit, is equivalent to 748.5 gallons of water. Some water bills display your usage converted to gallons.
If you don't see gallons anywhere on your bill, take the number of units used and multiply that by 748.5 and that's how many gallons of water you used in the billing period. To find out how much water you're using on a daily basis, take the number gallons and divide it by the number of days in the billing period. Are you being water-wise?
Tip: Use the Unit Converter on the left to find out how many gallons you're using. Please note that the conversion for the city of Gilroy and Stanford University is 1 unit = 1,000 gallons.
Sample water bill:

Though your bill may not look exactly like this, you can still use our sample water bill to help understand your household's water consumption.
Click on the water bill map to get more information on the different sections of your water bill.