Please contact us for any additional questions or to notify us of any problems with our tool. We welcome your comments and feedback.
To our knowledge, Tracking California's Water Boundary Tool is the only statewide effort that is continuously collecting and updating water service area boundary data. We do not post our dataset on other websites. For this reason, we recommend that you use the WBT data downloader to ensure that you have the most updated data.
Additionally, while our dataset has been used for underlying data in a number of online mapping tools-- such as the Waterboard's Human Right to Water Portal and Drinking Water Supply Service Lookup Tool-- we are not responsible for providing updates to those tools. Therefore, some discrepancies may exist between the water system boundaries in our datasets and those used externally.
When using the data, please remember that its collection is through an ongoing crowd-sourcing effort with participation by personnel from many water systems, districts, and other agencies. Therefore, between water systems, the data may vary in terms of data quality and completeness. Additionally, the WBT dataset may be updated frequently as water system boundaries are submitted, so past datasets may become outdated.
The WBT functionality is still under development and may continue to be modified and improved, which may also impact data quality and completeness. Although various administrative checks are employed to maintain the quality and consistency of these datasets, Tracking California and contributors of the data assume no liability for your use of this data. Use it at your own risk and discretion.
The WBT depends on qualified personnel from water systems, districts, and state agencies to submit accurate data. A specific water system may not have a boundary because no one has entered the data yet.
- If you represent that system or its associated district/LPA, you can register or login to submit data into the tool
- If you would like assistance in uploading data, please contact us and we can walk through the steps
- If you have entered data for that water system and it isn't appearing, please contact us
The WBT depends on qualified personnel from water systems, districts, and state agencies to submit accurate data. A specific water system may have an inaccurate boundary for a number of reasons, including input error or changes that may have occurred to the system's service area that are not reflected in the tool. You can help us to improve the quality of the dataset:
- If you created the boundary and it does not appear as expected, please contact us
- If you represent that system or its associated district/LPA and did not create the boundary, you can register or login to make changes
- If you are not associated with the water system, but know the boundary is wrong, please contact us. In some cases, a user may still be in the process of editing, so the boundary that appears in the water systems map viewer or corresponding file in the dataset may not be completed.
Boundaries of water system service areas may overlap in our data for a number of reasons.
- A water systemís boundary may not have been drawn accurately, resulting in slight or significant overlap occurring with other water system boundaries.
- A water wholesaler may have entered a boundary for its customers, which will include other water systems. In this case, you may see one large boundary overlapping several other smaller ones. The water system map viewer allows you to view overlapping systems separately by clicking on the system name in the tab.
By downloading the data or using water system map, you agree to use the following citation when developing websites, applications, or reporting results derived from the data: Tracking California, Public Health Institute. Water Boundary Tool. Accessed [Month/Day/Year] from www.trackingcalifornia.org/water.