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Safe Drinking Water


Drought State of Emergency

With California facing water shortfalls in the driest year in recorded state history, Governor Edmund G. Brown Jr. proclaimed a State of Emergency on January 17, 2014 and directed state officials to take all necessary actions to prepare for these drought conditions. DEHS is compiling a resource list for both water system operators and the public to help save water and respond appropriately. This resource list can be found on our Environmental Health Emergencies page.

Notice of Funding Availability – Household & Small Water System Drought Assistance Program (HSWSDA)

The State Water Resources Control Board (State Water Board) authorized $5 million to assist individual households and small water systems to address drought‐related drinking water emergencies. Funds are administered by three non‐profit organizations. Funding is available as low‐interest loans and/or grants based on recipients income and affordability.

Click here for details

Drinking Water Systems

The Division of Environmental Health Services (DEHS) Small Drinking Water System Program protects public health and safety by inspecting water systems to ensure pure and safe drinking water is supplied throughout San Bernardino County. In partnership with small drinking water systems owners/operators in our County, DEHS conducts routine inspections to prevent waterborne diseases, identify risks of bacteriological, chemical and/or radiological contamination, and provide technical assistance. DEHS has an agreement with the California Department of Public Health, Drinking Water Program (State Water Board) for administration and enforcement of the Federal and State statutes and regulations for any water systems under 200 service connections. Currently, there are 272 small drinking water systems.

Drinking Water System Information

California’s drinking water regulations were recently revised. The revisions included a change in nitrate reporting units. The nitrate MCL is now expressed as “10 mg/L (as nitrogen)” instead of “45 mg/L (as NO3)”. The MCL is not more stringent. The Division of Drinking Water believes this change will minimize confusion and facilitate reporting of results to U.S. EPA. Please help us transition to the new reporting units by ensuring that all future reporting by your State-certified laboratory is in the appropriate units (“as nitrogen”). Visit for more information or call DEHS.

Additional Chromium-6 Information

Chromium-6 Drinking Water Maximum Contaminant Level

Community and Nontransient Noncommunity Water System CCR Info

Electronic Annual Report (EAR) for Calendar Year 2014

No Cost Program by the Mojave Water Agency and CRWA for Small Water Systems Within the MWA Service Area

US EPA Water on Tap – What You Need to Know


Disinfection Byproducts Rule (DBPR) Monitoring Plan Template

Disinfection Byproducts Rule (DBPR) Overview

Disinfection Byproducts Rule (DBPR) Quarterly Monitoring Form Template

Disinfection Log Template

Surface Water Treatment Operations Plan Template

Consumer Confidence Reports

Visit the Water Board website to see files that will assist small water systems in completing the required notification to small water system customers and water users.

State Water Board CCR Guidance and Templates

Water Wells

The construction, reconstruction or destruction of any well requires a valid permit from DEHS and the work must be performed by a licensed California State Contractor as appropriate to the activity to be engaged in (i.e. C-57). Drillers shall be registered with DEHS prior to commencing any activity regulated by this Article.

The California Department of Water Resources has released a Statewide Advisory on Sealing Materials for Wells in California to increase protection of our groundwater resources from potential contamination due to inadequately sealed wells. For more information please visit:

Rural Community Assistance Corporation (RCAC): Household Water Well System Loan Program

Need water? RCAC may have loan options for individual water well systems. Click here for RCAC program information and application.

Application for well reuse after a natural disaster

Helpful Links

A Guide for Private Domestic Well Owners

How to Properly Abate Abandoned Water Wells

How to Store Water

Is My Property Near a Nitrate-Impacted Water Well?
State Water Board’s interactive tool for private domestic well owners to evaluate if their well is near a nitrate-impacted well.

List of Best Available Technologies (BAT)

Typical Individual Well
Requirements and diagrams of surface slab detail and pump installation detail for a typical well.

Water Trivia/Helpful Hints to Conserve Water

Water Well Sharing Guidelines

Well Drillers

Verify who is registered to drill wells in San Bernardino County and check the status of their state contractor’s license.

Registered Well Drillers List

State Contractor License Verification Page

Ready to submit a Well Permit Application?

When submitting an application, please keep in mind applications must be complete, this includes having all required signatures, and will not be processed until both the application and payment are received. Environmental Health Services will process applications within 10 business days after receiving both payment and application.

Customers are now able to submit Well Permit Applications:

Environmental Health Services

San Bernardino Office
385 N. Arrowhead Ave. 2nd floor
San Bernardino, CA 92415
Monday-Friday: 8 am- 5 pm

Rancho Cucamonga Office
8303 Haven Ave.
Rancho Cucamonga, CA 91730
Monday-Friday: 8 am- 5 pm

Jerry Lewis High Desert Government Center
15900 Smoke Tree St. Suite 131
Hesperia, CA 92345

By Mail to:
Environmental Health Services
385 N. Arrowhead Ave. 2nd floor
San Bernardino, CA 92415
***Please include your payment.
Make checks payable to County of San Bernardino EHS.

By E-mail to:

By Fax to:
(909) 387-4323

Domestic Well Water Sample Program

DEHS is using a grant to take domestic well water samples for known or suspected contaminants for our voluntary Domestic Well Water Sample Program (DWWS). Our goal is to identify contaminants of concern and to notify the property owner of the results so they may be properly informed regarding their well water. Sampling and test results are provided free of charge. To take part in this program, please fill out the Water Sampling Form. If you have questions regarding sample results, please visit or click on a specific concern on this page.



Chromium 6


Gross Alpha or Uranium



Cross Contamination and Backflow Prevention

The County of San Bernardino requires that domestic water systems within this jurisdiction are protected against contamination or pollution as a result of inadequate protection due to the lack of or malfunctioning of backflow prevention assemblies. In addition, State regulated water purveyors are also required to monitor backflow prevention devices to meet the California Code of Regulations, Title 17 requirements.

A Certificate of Competence issued by DEHS is required to inspect, maintain, or test water back flow prevention assemblies. All new registrants must successfully pass a written exam before sitting for the practical exam. All certificate holders who wish to renew must demonstrate competence at the practical exam. Candidates who are successful will receive a certificate. DEHS offers the option of being placed on our commercial testers list that is published below and solicited by water purveyors. DEHS currently offers four testing dates per year; typically in March, June, September and December.

For more information on the backflow program or to find out about upcoming backflow certification test dates, please contact DEHS at 1-800-442-2283.

Backflow Testing Information - June 2017

Commercial Backflow Testers – March 2017

Related Links

CA Water Conservation Portal

Save Our Water

US EPA Water Conservation – WaterSense

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