Municipal Water Treatment and Sanitization

Reliable Product Delivery, Every Time

Ensure uninterrupted supplies with our safety certified two-man crews, advance shipping notice, and real-time delivery tracking.

There’s nothing more important than ensuring our communities continuously have access to safe, clean and clear drinking water. Since 1964, HASA is proud to have been trusted to help deliver more than 20 billion gallons of clean water each year. Our fully owned plant-to-truck supply model means we have complete control over our water treatment product ecosystem, and you have our promise to consistently receive the freshest liquid sanitizer available on time.

NSF Certified From Start to Finish

HASA’s Multi-Chlor® sodium hypochlorite is a high concentration liquid sanitizer that is certified to NSF 60 drinking water standards. It is made from naturally derived products and manufactured using a combination of water, salt and electricity. After it cleans and disinfects the water supply, sodium hypochlorite returns to salt.

Your Water Treatment Goals Are Our Priority

With HASA, you receive 1:1 support for meeting your water sanitization standards on time and within budget.

We’re dedicated to being the go-to source for the premier water treatment and sanitization products available — but, more importantly, we’re proudly committed to being an accountable partner and resource to the municipalities that rely on our solutions.

Speed and Value

Access the highest concentration products for maximum effectiveness and efficiency with lead times as low as 24-48 hours.

On-Site Support

Ensure site safety and receive in-person sales and technical support from our experts.

Education and Resources

Stay up to date on the latest water treatment technologies and sustainable practices.

Safety Certifications

Grow your professional career in water treatment training and continued certification opportunities.

Clean Up After a Wildfire

Learn how to carefully restore swimming pools to safety with practical and actionable tips and advice.

Download the Resource

Pool Care Tips: From Green to Clean

Find out how to identify, treat, and prevent algae in pools from water chemistry expert Terry Arko.

Get Algae Advice

Understanding Chlorine Demand

Find out what factors lower chlorine effectiveness with our downloadable one-pager.

Download and Save

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Buy HASA Products Near You

Use our dealer and distributor locator to find out where you can purchase HASA products in your area.

Find a HASA Dealer

Recreational Water Treatments

Learn about HASA’s premium product to sanitize and shock pools and spas.

Explore HASA Sani-Clor®

Individualized Assistance

Fill out the contact form or get in touch with the HASA representative in your area.

Contact Our Team

"To this day, over the 3 + plus year long relationship we have enjoyed and are grateful for with Hasa, our water systems enjoy a high level of compliance and potability due in large part to the proactive and professional service we have received from Christopher Cornish and Hasa. They are always willing to help, even with larger projects and deliveries that are not currently under contact with them."

Brahman Conci

Operations Superintendent for the City Distribution Division of the San Francisco Water Department

Clean and Safe Water for Your Community